Question

Multiply

(3x+9y)(7x²+3y-4)​

Answer 1

Answer:

$(3x + 9y) \times (7 {x}^{2} + 3y - 4) \\ = 21 {x}^{3} + 9xy - 12x + 63 {x}^{2} y + 27 {y}^{2} - 36y \\ = 21 {x}^{3} + 27 {y}^{2} + 63 {x}^{2} y + 9xy - 12x - 36y$

Step-by-step explanation:

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Answer 2

Answer:

Ans:-

21x³+9xy-12x+63x²y+27y²-36y

Step-by-step explanation:

=(3x+9y)(7x2+3y-4)

=21x³+9xy-12x+63x²y+27y²-36y

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