Question

Express the polynomial x² + 8x + 15 in view of variable 'y'​

Answer 1

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Express the polynomial x² + 8x + 15 in view of variable 'y'

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y = x² + 8x + 15

y = x² + 5x + 3x + 15

y = x (x + 5) + 3 (x + 5)

y = (x + 3) (x + 5)

Answer 2

Your answers is in the following steps -:::

x² + 8x + 15=0

So factors the middle term.

x^2 +(3+5)x+15=0

x^2 +3x+5x+15=0

Taking common in the hole term.

x (x+3)+5 (x+3)=0

(x+3) (x+5) is your answer........