Question

x-a multiply x+b
fast​

Answer 1

Answer:

( x - a)(x + b) = x(x + b) - a (x + b)

                    = x2 + xb - ax - ab

                    = x2 - (a - b)x – ab

Answer 2

Answer:

x²-x(a-b)-ab

Step-by-step explanation:

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