Question

solve the question given in image​

Answer 1

Step-by-step explanation:

Let y = x², then 4x⁴ + 7x² - 2 = 4y² + 7y - 2

Use the quadratic formula to find the roots.

Quadratic formula

y = [-7 ± √(7² – 4·4(-2))] / [2·4]

 = [-7 ± √81] / 8

 = [-7 ± 9] /8

 = 0.25, -2

4y² + 7y - 2 = 4(y - 0.25)(y + 2) = (4y - 1) (y+2)

Answer 2

Step-by-step explanation:

1st 4 multiply with 2

2nd, answer will 8

3rd search for which number is suitable for +8-7 ?

4th, if we multiply 8 and add -7

5th, answer for 8and -7 is 1 ^ -8

And divide with 4 we get answer ( x+2)(4x-1)