Question

find the coefficient of x square in (2-3x square ) (x square -5)​

Answer 1

Answer:

coefficient of x square is

17

Step-by-step explanation:

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

2x^2-10-3x^4+15x^2

=-3x^4+17x^2-10

hope it helps

Answer 2

$The\ coefficient\ of\ x^2\ is\ 15$

Solution:

Given equation is:

$(2 - 3x^2)(x^2-5)$

We have to find the coefficient of $x^2$

From given,

Multiply and expand the equation

$(2 - 3x^2)(x^2-5)$

$\mathrm{Expand}\:\left(2-3x^2\right)\left(x^2-5\right)\\\\2x^2+2\left(-5\right)+\left(-3x^2\right)x^2+\left(-3x^2\right)\left(-5\right)\\\\2x^2-2\cdot \:5-3x^2x^2+3\cdot \:5x^2\\\\Simplify\\\\2x^2 - 10 - 3x^4 + 15x^2\\\\Add\:similar\:elements\\\\-3x^4 +17x^2 - 10$

$Thus\ coefficient\ of\ x^2\ is\ 15$

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