Question

multiply; (5x²-7x+2)by(2x²-3x-5)​

Answer 1

Multiply (2x² – 5x + 4) by (x² + 7x – 8)

Solution:

By column method

2x² – 5x + 4

× (x² + 7x – 8)

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2x⁴ – 5x³ + 4x² ⇐ multiplication by x².

+ 14x³ - 35x² + 28x ⇐ multiplication by 7x.

- 16x² + 40x - 32 ⇐ multiplication by -8.

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2x⁴ – 9x³ - 47x² + 68x - 32 ⇐ multiplication by (x² + 7x - 8).

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Therefore, (2x² – 5x + 4) by (x² + 7x – 8) is 2x⁴ – 9x³ - 47x² + 68x – 32.

Step-by-step explanation:

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only change the numbers..

Answer 2

Answer:

68-32 is right answer

Step-by-step explanation:

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