Step-by-step explanation:
=
−
±
2
4
√
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
9
8
1
0
9x^{2}-81=0
9x2−81=0
a=
a=9
b={\color{#e8710a}{0}}
b=0
c={\color{#129eaf}{-81}}
c=−81
⋅
(
)
x=2⋅9−0±02−4⋅9(−81)
The answer is quadratic, I took the test.
Answer:
1,000 is both a rational number and a whole number.
If my answer helped, please mark me as the brainliest!!
Thank You!!
x>3/2
