Question

Multiply (2x + 3y) by (5x2 - y2)​

Answer 1

Answer:

10x³- 3y³ + 15x²y - 2xy²

Step-by-step explanation:

2x (5x²-y²)+3y (5x²-y²) = 10x³ - 2xy² + 15x²y - 3y³

= 10x³ - 3y³ - 2xy² + 15x²y

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Answer 2

Step-by-step explanation:

(2x+3y) × (5×2-y²)

now solve 5×2in the bracket.

(2x+3y)× (10-y²)

2x(10-y²) + 3y(10-y²)

now firstly multiply 2x with 10 and then with y²

same you have to do with 3y firstly multiply it with 10 and then with y²

20x-2xy²+30y-3y³