Answer:
x = - 2 or x = 4
Step-by-step explanation:
To find the x- intercepts let f(x) = 0, that is
(x - 4)(x + 2) = 0
Equate each factor to zero and solve for x
x - 4 = 0 ⇒ x = 4
x + 2 = 0 ⇒ x = - 2
The x- intercepts are at x = - 2, x = 4
Dis the correct answer
X : red marble
Y: blue marble
X+Y= 81 (•)
Y= 5X+3 (••)
>>> 6X+3= 81 >>>> x=13 and y = 68