Find all zeros of f(x) = x4 + 5x2 – 36 by completely factoring the polynomial. f(x) = x4 + 5x2 – 36 = (x2 – 4) (x2 + 9) =

List the four zeros of the function.

Real zeros: +

Complex zeros:

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

Step-by-step explanation:

Explanation

f(x) = x⁴ + 5x² – 36

f(x) = x⁴ + 5x² – 36

    = (x²)² + 9 x² - 4 x² - 36

   = x² (x² + 9) - 4( x² +9)

   = (x² -4 ) (x² +9)

f(x) = x⁴ + 5x² – 36 = (x² -4 ) (x² +9)

(x² -4 ) (x² +9) = 0

⇒ x² -4  = 0 and x² +9 =0

⇒ x² -2² = 0  and  x² = -9

⇒ x = ±4   and   x = ±3 i

Real Zeros    x = ±4

Complex zeros :  x = ±3 i

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.