Math, asked by saniya1926, 7 months ago

Find the following product and then evaluate them X = 2 y =-1
1)( 7x +9y²) ( 3 xy²)

Answers

Answered by vaibhav987654

1

Answer:

(7x+9y²) (3xy²)

(21x²y²+27xy^4)

{21(2)²(-1)²+27(2)(-1)^4}

(21×4×1+27×2×1)

(84+54)

138

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