Question

$if \: \: x = 5 \: \: find \: \: the \: \: value \: \: of \: \: 3x {}^{2} + 8x - 10$
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Answer 1

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Q:-

$if \: \: x = 5 \: \: find \: \: the \: \: value \: \: of \: \: 3x {}^{2} + 8x - 10$

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$➾</p><p>3 {x}^{2} + 8x - 10$

$➾</p><p>3 {(5)}^{2} + 8(5) - 10$

$➾</p><p>75 + 40 - 10 = 115 - 10 = 105$✓

➾If x=5 then value of 3x^2+8x-10 be 105

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Answer 2

Answer:

105

Explanation:

3x²+8x-10

if x=5

then,

3(5)²+8(5)-10

=3(25)+40-10

=75+40-10

=115-10

=105