1.) g (-4)
2006-08-09 04:41:25 · 5 answers · asked by LaToya J 1 in Science & Mathematics ➔ Mathematics
g(x) = 4x^3 + 2x^2 + x - 7
2006-08-09 04:57:46 · update #1
g ( -4 ) = -256 + 32 - 4 - 7
= -267 + 32
= -235
2006-08-09 04:48:01 · answer #1 · answered by nayanmange 4 · 0⤊ 0⤋
plug in negative four:
g(-4)= 4*(-4)(-4)(-4) + 2*(16) -4 -7
= -256+32+3 = -235
2006-08-09 11:49:16 · answer #2 · answered by ymingy@sbcglobal.net 4 · 0⤊ 0⤋
Yes, just put "-4" everywhere you see an "x" and do the arithmetic.
Just be careful with powers of negative numbers.
(-4)^2 = 16
(-4)^3 = -64
2006-08-09 12:27:07 · answer #3 · answered by Francisco C 2 · 0⤊ 0⤋
g(x) = 4x^3 + 2x^2 + x - 7
g(-4) = 4(-4)^3 + 2(-4)^2 + (-4) - 7
g(-4) = 4(-64) + 2(16) - 4 - 7
g(-4) = -256 + 32 - 11
g(-4) = -235
2006-08-09 11:55:30 · answer #4 · answered by Sherman81 6 · 0⤊ 0⤋
-235
2006-08-09 12:23:56 · answer #5 · answered by gosia_k 2 · 0⤊ 0⤋