Question

(x+3)^2 use suitable identity and expand​

Answer 1

Answer:

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Step-by-step explanation:

$using \: \: identity \\ a {}^{2} + b {}^{2} = a {}^{2} + 2 ab +b {}^{2} \\ \\ (x + 3) {}^{2} = ( {x}^{2} ) + 2(x)(3) + (3) {}^{2} \\ = {x}^{2} + 6x + 9$

Answer 2

${ \:(x + 3) }^{2} = ( x + 3)(x + 3) \\ = {x}^{2} + 2 \times x \times 3 + {3}^{2} \\ = {x}^{2} + 6x + 9$