F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)
f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4
Answer: C. x = -5 and x = 4.
Your answer can only be simplified to
256x^10 - 384^8 - 448^6
Answer:
17.5'
Step-by-step explanation
According to the question
The equation is
5/8=x/28
8x=140
x=17.5
Answer:
I dont see the picture sry
