The correct option is A (a+b)^2=a^2+2ab+b^2 (3z + 4)(3z + 4) = (3z)^2 + 2 × 3z × 4 + 4^2 = 9z^2 + 24z + 16 ...

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Division of a Monomial by a Monomial

Evaluate: 3 z...

Question

Evaluate: (3z + 4)(3z + 4)

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Solution

The correct option is B

$(a + b)^{2} = a^{2} + 2 a b + b^{2}$
$(3 z + 4) (3 z + 4)$
$= (3 z)^{2} + 2 \times 3 z \times 4 + 4^{2}$
$= 9 z^{2} + 24 z + 16$

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