Question

what are the identities of (x+a)(x+b)​

Answer 1

${x}^{2} + xa + xb + ab$

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Answer 2

Answer:

We know, (x + a)(x + b) = x2 + (a + b)x + ab. Therefore, (2a - 5)(2a + 3) = (2a)2 + (-5 + 3) ∙ (2a) + (-5) ∙ 3. = 4a2 – 4a – 15.

Step-by-step explanation:

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