Factor the polynomial 3x4 – 2x2 + 15x2 - 10 by grouping. which product is the factored form of the polynomial? (x2 - 5)(3x2 + 2) o (22 – 2)(3x2 + 5) (22 + 5)(3x2 – 2) 0 (372 - 5)(2+2)

see explanation

Step-by-step explanation:

Given

3 - 2x² + 15x² - 10

Factor the first/second and third/fourth terms )

= x²(3x² - 2) + 5(3x² - 2) ← factor out (3x² - 2) from each term

= (3x² - 2)(x² + 5)

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,