Question

(2a+b-3)+(5b-7a+9) simplify the following question
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Answer 1

a2 + 2ab + b2 = (a + b)

2

a2 – 2ab + b2 = (a – b)

2

a2 – b2 = (a + b) (a – b)

x2 + (a + b) x + ab = (x + a) (x + b)