3x to the second power minus 8y to the second power
x = -6
y = -1
2007-06-23 16:15:30 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3 x^2 - 8 y^2
= 3*36 - 8*1
= 108 - 8 = 100
2007-06-23 16:18:48 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
Well, if x is minus 6, the x^2 = 36.
So 3x^2 is 3*36 = 108.
if y is minus 1, then y^2 = 1.
So 8y = 8.
So the answer is 108 - 8 = 100.
Hope this helps.
.
2007-06-23 23:18:51 · answer #2 · answered by tsr21 6 · 0⤊ 0⤋
= 3(36) - 8(1)
= 108 - 8
= 100
2007-06-23 23:21:26 · answer #3 · answered by Lemons_kisses 1 · 0⤊ 0⤋
Are you in a program called megsss(gifted math) and imast(gifted science). Cause we learned that in algebra honors this year.
2007-06-23 23:19:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
come on plug and chug
2007-06-23 23:18:51 · answer #5 · answered by keyblademasterzb 3 · 0⤊ 0⤋