Answer:
4x-8
Step-by-step explanation:
simplify by combining like terms so 4x and then -24+16=-8
Answer:
-7
Step-by-step explanation:
4 + (-11)
=> {since, positive x negative = negative}
=> 4 - 11
=> -7
Answer:
5. A) two solutions
6. one solution
Step-by-step explanation:
5. A graph shows the curve has two x-intercepts, so two solutions. You can also figure this by looking at the discriminant:
b^2 -4ac = (7)^2 -4(-4)(8) . . . . a positive number
When the discriminant is positive, there are two real solutions.
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6. The equation factors as ...
0 = 3(x +3)^2
This will have one real solution at x=-3.
Answer:
5/7
Step-by-step explanation:
-3/7 * -1 2/3
Change the mixed number to an improper fraction
-1 2/3 = -(3*1 +2)/3 = -5/3
-3/7 * -5/3
= 5/7