(x+4) (x+4) =?(a) (x2+16) (b) (x2+4x+16) (c) (x2+8x+16) (d) (x2+16x

1.	(x+4) (x+4) =?(a) (x2+16) (b) (x2+4x+16) (c) (x2+8x+16) (d) (x2+16x)
Answer» (c) (x²+8x+16) Explanation: Given (x+4) (x+4)=(x+4)² By expanding the given expression by using (a + b)²= a²+2ab+b²we get (x+4)² = x²+2(x) (4)+4² = x²+8x+16

(x+4) (x+4) =?(a) (x2+16) (b) (x2+4x+16) (c) (x2+8x+16) (d) (x2+16x)

Answer»

(c) (x²+8x+16)

Explanation:

Given (x+4) (x+4)=(x+4)²

By expanding the given expression by using (a + b)²= a²+2ab+b²we get

(x+4)² = x²+2(x) (4)+4² = x²+8x+16