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2007-09-03 20:16:30 · 7 answers · asked by Anonymous in Science & Mathematics Mathematics

7 answers

= - 28 - (- 4)(64)
= - 28 + 256
= 228

2007-09-07 19:50:19 · answer #1 · answered by Como 7 · 0 0

EDIT:
-7x - (-4x^3) when x = 4

substitute 4 in x

-7*4 - (-4*4^3)
= -28 -(-4*64)
= -28 - (-256)
= -28 + 256
= 228

2007-09-04 03:27:11 · answer #2 · answered by click_here 2 · 0 0

-7x - (-4x^3)
-7x + 4x^3
-7*4 + 4(4)^3
-28 + 256
228

2007-09-04 03:27:14 · answer #3 · answered by xandyone 5 · 0 0

228

2007-09-04 03:26:13 · answer #4 · answered by Meeto 7 · 0 0

-7(4)-(-4(4^3)) would be -28-(-4(64)) which is -28-(-256) which is -28+256 which is 228. im pretty sure im right....if not someone correct me!

2007-09-04 03:36:40 · answer #5 · answered by dustyalford 3 · 0 0

i believe click here is right, from the look of his work

he is right for the simple fact if u look the parenthesis are around the whole thing so u apply the cubed root to the whole parenthesis not just the x (which u replaced with 4)

2007-09-04 03:30:36 · answer #6 · answered by Fee Fee 2 · 0 0

.... -4124?

2007-09-04 03:24:21 · answer #7 · answered by stuck on level 4 4 · 0 0

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