Question

(x+a)(x+b)
$(x + a)(x - b)$
​

Answer 1

FIRST,

$(x + a)(x + b) = {x}^{2} + (a + b)x + ab$

SECOND,

$(x + a)(x - b) = {x}^{2} + (a - b)x - ab$

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HOPE IT HELPS ❤✨