Answer:
m=2-2
m=0
Step-by-step explanation:
U need to do substitution
So u carry both 2 from that side to cross the equal to sign. One becomes positive because it is carrying a negative sign at the other side
Answer:
x₁ = √15
x₂ = - √15
Step-by-step explanation:
x² - 15 = 0
x² = 15
x = ±√15
x₁ = √15
x₂ = - √15
Answer:
-52.5 or -53
Step-by-step explanation:
Start by subtracting 18 from both sides. With you get 0.4=-21. Now divide 0.4 into both sides.
Answer:
C
Step-by-step explanation:
We need to first rewrite the equation the proper way.
(-2x+4x²+5)-(x²+3x)
We need to distribute the negative thought the 2nd set of parenthesis.
-2x+4x²+5-x²-3x
combine the same terms
3x²-5x+5
76% would be your test score
