hello,
plzz solve it
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Step-by-step explanation:
(a) (2x^2-x+3) × (x-2)
= x(2x^2-x+3)-2(2x^2-x+3
= 2x^3-x^2+3x-4x^2+2x-6
= 2x^3-5x^2+5x-6
(b) (3x^2+5x-1) × (2x^3-x^2)
= 2x^3(3x^2+5x-1)-x^2(3x^2+5x-1)
= 6x^5+10x^4-2x^3-3x^4-5x^3+x^2
= 6x^5+7x^4-7x^3+x^2
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