Hello :
<span>If f(x)=x/2-2 and g(x)=2x^2+x-3, find (f+g)(x)
</span>(f+g)(x)= f(x) +g(x) = x/2-2 +2x²+x-3 = x/2 +2x²+x-5
(f+g)(x)= (x+4x²-2x-10) /2
(f+g)(x)= (4x²+3x-10)/2 = 2x²+3/2 x -5
Answer:
y = x² + x - 12
Step-by-step explanation:
Given the solutions are x = - 4 and x = 3, then the factors are
x(x - (- 4)) and (x - 3), that is (x + 4) and (x - 3)
The equation is then the product of the factors
y = (x + 4)(x - 3) ← expand using FOIL
= x² - 3x + 4x - 12
= x² + x - 12 ← in standard form
Answer: I think it’s B (25)
Step-by-step explanation: