Step-by-step explanation:
(F-g) (X)
= f(x) - g(x)
(2x² + 2 )-(x²-1) =
3x²+3
The function is increasing on the intervals
x ∈ (-∞, -1) ∪ (1, ∞)
Answer:
1 7/8 ( last one )
Step-by-step explanation:
3/4 x 5/4
15/8 = 1 7/8
If this helps you, please mark brainliest!
Rearrange the equation by writing
x² + x - 90 = 0
x² + x = 90
x² + x + 1/4 = 90 + 1/4
Recall that (a + b)² = a² + 2ab + b². Then
x² + 2 • x/2 + (1/2)² = 361/4
(x + 1/2)² = 361/4
x + 1/2 = ± √(361/4)
x = -1/2 ± 19/2
x = 9 or x = -10
Didn’t I just answer this same question some minutes ago?
