Question

please solve it (only 2no.) question
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Answer 1

Answer:

The answer is x⁴+2x³-18x²+31x+24

Step-by-step explanation:

(x²-5x+8)×(x²+2x-3)

x⁴+2x³-3x²-5x²-10x²+15x+8x²+16x-24

x⁴+2x³-3x²-5x²-10x²+8x²+16x+15x-24

x⁴+2x³-18x²+31x-24

Hope it will help you

Answer 2

Answer:

(1). 12x² + 4xy - 6y² ; (2). $x^{4}$ - 3x³ - 5x² + 31x - 24

Step-by-step explanation:

(1). P = 2[(5x² - 3y²) + (x² + 2xy)] = 2(6x² + 2xy - 3y²) = 12x² + 4xy - 6y²

(2). (x² - 5x + 8)(x² + 2x - 3) =

$x^{4}$ + 2x³ - 3x² - 5x³ - 10x² + 15x + 8x² + 16x - 24 =

$x^{4}$ - 3x³ - 5x² + 31x - 24