Question

Express (3 + 7)^2 in the form of + .

Answer 1

Step-by-step explanation:

(3+7)^2 in the from of +. answer s 10

Answer 2

Answer:

$(3 + 7 {)}^{2} \\ = (10 {)}^{2} \\ = 100 \\ or \: \: by \: \: using \: \: identity \: \\ (x + y {)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ (3 + 7 {)}^{2} = {3}^{2} + 2 \times 3 \times 7 + {7}^{2} \\ = 9 + 42 + 49 \\ = 100$

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