Answer:
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THE ANSWER IS .......................... 8.5!!!!
HOPE I HELPED!!!!!!!!
Answer:
-4 ± 2√6
Step-by-step explanation:
Rewritten in standard quadratic form, x^2+8x-2=18 becomes x^2 + 8x - 20 = 0.
Here the quadratic coefficients are a = 1, b = 8 and c = -20 and so the discriminant is b^2 - 4ac, or 8^2 - 4(1)(-20), or 96.
Because the discriminant is positive, we know that this quadratic has two different real roots. These roots are:
-b ± √(b² - 4ac)
x = -------------------------
2a
which in this case comes out to:
-8 ± √96 -8 ± 4√6
x = ------------------ = ------------------- = -4 ± 2√6
2 2
Answer:
4(2) ⋅6.
Step-by-step explanation: SORRY IF THIS IS WRONG
Answer:
Step-by-step explanatSolve and graph the absolute value inequality: |2x + 1| ≤ 5.
ion:
