Question

Factorise: a²+8a+16
Class 8th
Maths

Answer 1

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a²+8a+16

= a²+2×4×a+4²

= (a+4)²

Using identify:- (x+y)² = x²+2xy+y²

Answer 2

Answer:

Answer is here

Please mark brainliest

Step-by-step explanation:

Using identity-

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab$

Now,

${a}^{2} + 8a + 16 \\ = ( {a)}^{2} + 2 \times a \times 4 + {(4) }^{2} \\ = {(a + 4)}^{2} \\ = (a + 4)(a + 4)$

This Answer is correct