Tick ( ) the correct answer: (x + 4)(x + 4) = ? - Vidyadip

MCQ

Tick $(\checkmark)$ the correct answer: $(x + 4)(x + 4) = ?$

A
$(x^2 + 16)$
B
$(x^2 + 4x + 16)$
✓
$(x^2 + 8x + 16)$
D
$(x^2 + 16x)$

✓

Answer

Correct option: C.

$(x^2 + 8x + 16)$

C. $(x^2 + 8x + 16)$
Solution:
$(x + 4)(x + 4)$
$= x^2 + (4 + 4)x + 4 × 4$
$= x^2 + 8x + 16$

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