x³-8x²+45 factorize it and 2x²-3x-9 factorize
Answers
Answered by
15
2x²-3x-9
=2x²-6x+3x-9
=2x(x-3)+3(x-3)
(x-3)(2x+3)......solved..
=2x²-6x+3x-9
=2x(x-3)+3(x-3)
(x-3)(2x+3)......solved..
Anonymous:
but i coldn't solve 1
ok no prbllm
Answered by
27
(1)
Given Equation is x^3 - 8x^2 + 45
= > x^3 - 5x^2 - 3x^2 - 15x + 15x + 45
= > x^3 - 5x^2 - 15x - 3x^2 + 15x + 45
= > x(x^2 - 5x - 15) -3(x^2 - 5x - 15)
= > (x - 3)(x^2 - 5x - 15).
(2)
Given Equation is 2x^2 - 3x - 9
= > 2x^2 + 3x - 6x - 9
= > x(2x + 3) - 3(2x + 3)
= > (x - 3)(2x + 3)
Hope it helps!
Given Equation is x^3 - 8x^2 + 45
= > x^3 - 5x^2 - 3x^2 - 15x + 15x + 45
= > x^3 - 5x^2 - 15x - 3x^2 + 15x + 45
= > x(x^2 - 5x - 15) -3(x^2 - 5x - 15)
= > (x - 3)(x^2 - 5x - 15).
(2)
Given Equation is 2x^2 - 3x - 9
= > 2x^2 + 3x - 6x - 9
= > x(2x + 3) - 3(2x + 3)
= > (x - 3)(2x + 3)
Hope it helps!
if possible brainliest it!
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