If x*x-2x-35=0 then x=?

x=7   x=-5

Step-by-step explanation:

x^2 -2x-35 = 0

Factor

What two numbers multiply to -35 and add to -2

-7*5 = -35

-7+5 = -2

(x-7) (x+5) =0

Using the zero product property

x-7 =0    x+5 =0

x=7   x=-5

x = 7 or

x = -5

Step-by-step explanation:

x² - 2x - 35 = 0

x² - 7x + 5x - 35 = 0

x(x - 7) + 5(x - 7) = 0

(x - 7) (x + 5) = 0

x - 7 = 0 or x + 5 = 0

x = 7 or x = -5

answer:

a=9

step-by-step explanation: lmk if you need a explanation

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168