Math, asked by bhemes24, 9 months ago

if u answer this Question correctly then I will keep u in brainly ok naa

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Answers

Answered by Truebrainlian9899
33

☞︎︎︎ 1.) Expand the following :

\:  \:  \:  \:  \:  \:

  \:  \:  \:  \:  \:  \:  \: \looparrowright  \:  \: \mathtt{ \:  {a :  \: ( - 4)}^{7} }

\:  \:  \:  \:  \:  \:

➪ -4 × -4 × -4 × -4 × -4 × -4 × -4

\:  \:  \:  \:  \:  \:

➪ 16 × 16 × 16 × -4

\:  \:  \:  \:  \:  \:

➪ 256 × -64

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  \bigstar \large \:  \boxed{ =  \mathtt{ \:  - 16384}}

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_____________________________________________

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  \:  \:  \:  \:  \:  \:  \: \looparrowright  \:  \: \mathtt{ \:  {b :  \: ( 2x)}^{4} }

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➪ 2x × 2x × 2x × 2x

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➪ 4x² × 4x²

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  \bigstar \large \:  \boxed{ =  \mathtt{ 16 {x}^{4} }}

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☞︎︎︎ Write in exponential form :

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✞︎ 3a ×3a × 3a × 3a × 3a

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9a² × 9a² × 3a

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➪ 81a⁴ × 3a

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  \bigstar \large \:  \boxed{ =  \mathtt{ 243 {a}^{5}  }}

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_____________________________________________

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✞︎ -5( x × x × x × x × x)

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➪ -5(x⁵)

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  \bigstar \large \:  \boxed{ =  \mathtt{  - 5 {x}^{5}   }}

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☞︎︎︎ Simplify :

\:  \:  \:  \:  \:  \:

  \:  \:  \:  \:  \:  \:  \: \looparrowright  \:  \: \mathtt{ \:  {a :  \: 3}^{2}  \times 3 {}^{3} }

\:  \:  \:  \:  \:  \:

❥︎ In multiplication , when the bases are same then powers are added

\:  \:  \:  \:  \:  \:

 \implies \mathtt{ {3}^{2 + 3} }

\:  \:  \:  \:  \:  \:

 \implies \mathtt{ {3}^{5} }

\:  \:  \:  \:  \:  \:

 \implies \mathtt{ {3}^{}  \times 3 \times 3 \times 3 \times 3}

\:  \:  \:  \:  \:  \:

 \implies \mathtt{9  \times 9 \times 3}

\:  \:  \:  \:  \:  \:

 \implies \mathtt{81 \times 3}

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  \bigstar \large \:  \boxed{ =  \mathtt{ \: 243}}

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_____________________________________________

\:  \:  \:  \:  \:  \:

  \:  \:  \:  \:  \:  \:  \: \looparrowright  \:  \: \mathtt{ \:  {b :  \: 2}^{3}  \times 4 {}^{2} }

\:  \:  \:  \:  \:  \:

4 = 2²

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➪ 4² = 2³

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 \implies \mathtt{2 {}^{3} \times  {2}^{3}  }

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❥︎ In multiplication , when the bases are same then powers are added

\:  \:  \:  \:  \:  \:

 \implies \mathtt{2 {}^{3 + 3} }

\:  \:  \:  \:  \:  \:

 \implies \mathtt{2 {}^{6} }

\:  \:  \:  \:  \:  \:

 \implies \mathtt{2 \times 2 \times 2 \times 2 \times 2 \times 2 }

\:  \:  \:  \:  \:  \:

 \implies \mathtt{4 \times 4 \times 4}

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 \implies \mathtt{16 \times 4}

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  \bigstar \large \:  \boxed{ =  \mathtt{ \: 64}}

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