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Please factorize the question |
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Answer» Pull out like factors : ab3 - a3b = -ab • (a2 - b2) Trying to factor as a Difference of Squares: 2.2 Factoring: a2 - b2 THEORY : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)Proof : (A+B) • (A-B) = A2 - AB + BA - B2 = A2 - AB + AB - B2 = A2 - B2Note : AB = BA is the commutative property of multiplication.Note : - AB + AB EQUALS ZERO and is therefore eliminated from the expression.Check : a2 is the square of a1 Check : b2 is the square of B1 Factorization is : (a + b) • (a - b) |
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