Which is a solution to (x - 2)(x + 10) = 13?
o x= 3
o x = 8
o x = 10
o x= 11

x = 3.

Step-by-step explanation:

(x - 2)(x + 10) = 13

x^2 + 8x - 20 = 13

x^2 + 8x - 33 = 0

( x +11)(x - 3) = 0

x = 3, -11.

x = - 11, x = 3

Step-by-step explanation:

Given

(x - 2)(x + 10) = 13 ← expand the left side using FOIL

x² + 8x - 20 = 13 ( subtract 13 from both sides )

x² + 8x - 33 = 0 ← in standard form

Consider the factors of the constant term (- 33) which sum to give the coefficient of the x- term (+ 8)

The factors are + 11 and - 3, since

11 × - 3 = - 33 and 11 - 3 = + 8, thus

(x + 11)(x - 3) = 0

Equate each factor to zero and solve for x

x + 11 = 0 ⇒ x = - 11

x - 3 = 0 ⇒ x = 3

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

i dont know sorry

step-by-step explanation: