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Solnce55 [7]
3 years ago
9

Multiply (2x^2-3x)(3x^2+2x-1)

Mathematics
2 answers:
alina1380 [7]3 years ago
8 0

Answer:

Step-by-step explanation:            -9<em>X3</em>+12x2-x-2

iogann1982 [59]3 years ago
3 0

<u>ANSWER:  </u>

Multiplication of \left(2 x^{2}-3 x\right) \text { and }\left(3 x^{2}+2 x-1\right) \text { is } 6 x^{4}-5 x^{3}-8 x^{2}+3 x

<u>SOLUTION: </u>

We need to multiply \left(2 x^{2}-3 x\right) \text { and }\left(3 x^{2}+2 x-1\right)

=\left(2 x^{2}-3 x\right)\left(3 x^{2}+2 x-1\right)

=2 x^{2}\left(3 x^{2}+2 x-1\right)-3 x\left(3 x^{2}+2 x-1\right)

=\left(2 x^{2} \times 3 x^{2}\right)+\left(2 x^{2} \times 2 x\right)+\left(2 x^{2} \times(-1)\right)-\left(3 x \times 3 x^{2}\right)-(3 x \times 2 x)-(3 x \times(-1))

=6 x^{4}+4 x^{3}-2 x^{2}-9 x^{3}-6 x^{2}+3 x

=6 x^{4}+(4-9) x^{3}-(2+6) x^{2}+3 x

=6 x^{4}-5 x^{3}-8 x^{2}+3 x

Hence, multiplication of \left(2 x^{2}-3 x\right) \text { and }\left(3 x^{2}+2 x-1\right) \text { is } 6 x^{4}-5 x^{3}-8 x^{2}+3 x

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