4y(to the 3rd power) +3y +5 when y = -3
2007-09-01 16:30:30 · 5 answers · asked by Kiss Kiss 2 in Science & Mathematics ➔ Mathematics
but wouldn't the -3^3 be a positive 27?
2007-09-01 16:38:32 · update #1
4y^3 + 3y + 5 when y = -3:
4*(-3)^3 + 3(-3) + 5
4(-27) + 3(-3) + 5
-108 + (-9) + 5
-117 + 5
-112
2007-09-01 16:35:33 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Hey,
-3 to the power of 3 would not be positive 27, because you're doing this:
-3*-3*-3
which is equal to 9*-3 which is -27. Two negatives make a positive, but three negatives make a negative. ;)
2007-09-01 16:50:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4 * (-3) ^ 3 + 3 (-3) + 5
= 4 * (-27) + (-9) + 5
= -108 - 9 + 5
= -112
2007-09-01 16:36:45 · answer #3 · answered by norman 7 · 0⤊ 1⤋
i believe it would be -112
just substitute the y with -3 and solve for it using the order of *BEDMAS
Brackets, Exponents, Division, Multiplication, Addition, then Substraction
2007-09-01 16:39:33 · answer #4 · answered by Anonymous · 0⤊ 1⤋
5x-17=-x+7
2014-08-22 10:30:01 · answer #5 · answered by Sarah 1 · 0⤊ 0⤋