Math, asked by jiausman82, 1 month ago

Factorize (3 x - 5 y)² - 49 z²​

Answers

Answered by reddiamond1607
0

Answer:

Expand the square

(

3

5

)

2

4

9

2

\left(3x-5y\right)^{2}-49z^{2}

(3x−5y)2−49z2

(

3

5

)

(

3

5

)

4

9

2

(3x-5y)(3x-5y)-49z^{2}

(3x−5y)(3x−5y)−49z2

2

Distribute

(

3

5

)

(

3

5

)

4

9

2

{\color{#c92786}{(3x-5y)(3x-5y)}}-49z^{2}

(3x−5y)(3x−5y)−49z2

3

(

3

5

)

5

(

3

5

)

4

9

2

{\color{#c92786}{3x(3x-5y)-5y(3x-5y)}}-49z^{2}

3x(3x−5y)−5y(3x−5y)−49z2

3

Distribute

3

(

3

5

)

5

(

3

5

)

4

9

2

{\color{#c92786}{3x(3x-5y)}}-5y(3x-5y)-49z^{2}

3x(3x−5y)−5y(3x−5y)−49z2

9

2

1

5

5

(

3

5

)

4

9

2

{\color{#c92786}{9x^{2}-15xy}}-5y(3x-5y)-49z^{2}

9x2−15xy−5y(3x−5y)−49z2

4

Distribute

9

2

1

5

5

(

3

5

)

4

9

2

9x^{2}-15xy{\color{#c92786}{-5y(3x-5y)}}-49z^{2}

9x2−15xy−5y(3x−5y)−49z2

9

2

1

5

1

5

+

2

5

2

4

9

2

9x^{2}-15xy{\color{#c92786}{-15xy+25y^{2}}}-49z^{2}

9x2−15xy−15xy+25y2−49z2

5

Combine like terms

9

2

1

5

1

5

+

2

5

2

4

9

2

9x^{2}{\color{#c92786}{-15xy}}{\color{#c92786}{-15xy}}+25y^{2}-49z^{2}

9x2−15xy−15xy+25y2−49z2

9

2

3

0

+

2

5

2

4

9

Answered by dulanhandique159
0

Step-by-step explanation:

Hope it helps you

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