Expand. Your answer should be a polynomial in standard form.
(-2h+9)(9h-2)=(−2h+9)(9h−2)=left parenthesis, minus, 2, h, plus, 9, right parenthesis, left parenthesis, 9, h, minus, 2, right parenthesis, equals

step-by-step explanation:

i hate black

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

the answer is:

mean: 6

mad: 2.14

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629