Multiply the monomial by the binomial and verify the result when x=1 and y=2 7xy(x^3y^2-2xy^3
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Answer:
7x⁴y³-14x²y⁴
Step-by-step explanation:
=7xy(x³y²-2xy³)
=7x⁴y³-14x²y⁴
if x= 1 and y=2
LHS
7xy(x³y²-2xy³)
=7(1)(2)[1³(2)²-2(1)(2)³]
=14[4-16]
=14(-12)
=-168
RHS
=7x⁴y³-14x²y⁴
=7(1)⁴(2)³-14(1)²(2⁴)
=7(8)-14(16)
=56-224
=-168
LHS= RHS
hence verified.
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