The answer I came up with is:
-5t^4 + 18 t^2 + 14
Is that correct?
2007-06-22 15:23:39 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
the correct answer is:
(t^ 2 -6t + 7) – (5t^2 – 3t -2)
= t^2 6t+7 - 5^2 +3t+2
= -4t^2 - 3t+9
(when open the brackets, take note of the minus sign.) minus&minus give u plus sign.
2007-06-22 15:29:12 · answer #1 · answered by Teresa 1 · 0⤊ 0⤋
= t² - 6t + 7 - 5t² + 3t + 2
= - 4t² - 3t + 9
2007-06-23 13:44:48 · answer #2 · answered by Como 7 · 0⤊ 0⤋
(t^2-6t+7)-(5t^2-3t-2)
-4t^2-3t+9
ans. simplified is -4t^2-3t+9
When you have two monomials with the same amount of exponents, you add the bases, but keep the exponents the same.
5^2, 5 is the base, and 2 is the exponent(5^2=5*5=25... remember?)
So the answer that you have is wrong.
2007-06-22 22:42:26 · answer #3 · answered by abcd 2 · 0⤊ 0⤋
(t² -6t + 7) - (5t²– 3t -2)
Clear parentheses
t² - 6t + 7 - 5t² + 3t + 2
-4t² - 3t + 9
.
2007-06-22 22:31:10 · answer #4 · answered by Robert L 7 · 0⤊ 0⤋
Not if your question is correct, no.
As given, the answer is
-4t^2 -3t +9
2007-06-22 22:27:55 · answer #5 · answered by tsr21 6 · 0⤊ 0⤋
you need to subtract the second term from the first term.
-4t^2-3t+9 is the answer.
2007-06-22 23:11:57 · answer #6 · answered by edina b 1 · 0⤊ 0⤋