Question

Factories the expression
a2+8a+16​

Answer 1

Answer:

a = -4, -4

Step-by-step explanation:

a2+8a+16 = 0

a^2 + 4a + 4a +16 = 0

a (a + 4) + 4 (a + 4) = 0

(a+4) (a + 4) = 0

a = -4, -4

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Answer 2

a2 + 8a + 16

Here, 4 + 4 = 8 and 4 × 4 = 16

a2 + 8a +16

= a2 + 4a + 4a + 4 × 4

= (a2 + 4a) + (4a + 16)

= a(a + 4) + 4(a + 4)

= (a + 4) (a + 4)

= (a + 4)2