Question

8. Write the coefficient of x2 in (2x2 – 5)(4 + 3x2).

Answer 1

Hello dear .

first of all Solution this ...

(2x^2 - 5) ( 4 + 3x^2)

=> 2x^2(4+3x^2) - 5 ( 4+3x^2)

=> 8x^2 + 6x^4 - 20 + 15x^2

=> 23x^2 + 6x^4 -20

THEREFORE , here the coefficient of x^2 is 23.

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Hope it's helps you.
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Answer 2

Hey!

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(2x² - 5)(4 + 3x²)

Multiply :-

= 2x² (4 + 3x²) - 5 (4 + 3x²)

= 8x² + 6x^4 - 20 + 15x²

= 23x² + 6x^4 - 20

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So the Coefficient of x²

= 23

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Regards :)

Cybary

Be Brainly :)