Question

Find the following products using identities.
(x+7)(x+2)
​

Answer 1

Answer:

${x}^{2} + 9x + 14$

Step-by-step explanation:

(X+a)(X+b) = x^2+x(a+b)+ab

${x}^{2} + x(7 + 2) + 7 \times 2 \\ {x}^{2} + 7x + 2x + 14 \\ {x}^{2} + 9 + 14$

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Answer 2

Answer:

x² + 9x + 14

Step-by-step explanation:

(x + 7) (x + 2)

x (x + 2) + 7(x + 2)

x² + 2x + 7x + 14

x² + 9x + 14

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