Sagot :
Answer:
the usual way to type a power is to use the ^ to show exponents,
e.g.
x^2 is "x squared"
0 = −2x^2 − 3x + 8 in standard form is
2x^2 + 3x - 8 = 0
so b^2 - 4ac = 9 - 4(2)(-8) = ..
4(x + 2)^2 = 36
divide both sides by 4
(x+2)^2 = 9
x+2 = ±√9
x = -2 ± 3
= -5 or 1
after looking at the above stuff, you should be able to answer your last question
Step-by-step explanation:
hope it helps