2x^2 - 4x when x = -3?

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2007-09-03 20:10:46 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2x^2 - 4x when x = -3?

2(-3)^2 - (4(-3)
2(9) - (-12) this will become plus "+" because of the (-)(-)
18 + 12
= 30

2007-09-03 20:41:44 · answer #1 · answered by Patricia 2 · 0⤊ 0⤋

2 x 9 + 12 = 30

2007-09-07 19:51:31 · answer #2 · answered by Como 7 · 0⤊ 0⤋

2007-09-03 20:20:50 · answer #3 · answered by Meeto 7 · 0⤊ 0⤋

............ i got -24. Not sure if its right though

2007-09-03 20:22:12 · answer #4 · answered by stuck on level 4 4 · 0⤊ 0⤋