Simplify: (x^2 + 3x - 5) + (4x^2 - 7x - 9)
A. 4x^2 - 10x + 4
B. 4x^4 - 4x^2 + 45
C. 5x^2 - 4x - 14
D. -3x^2 - 4x - 4
2007-07-27 07:55:59 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(x² + 3x - 5) + (4x² - 7x - 9)
Remove parenthesis
x² + 3x - 5 + 4x² - 7x - 9
Collect like terms
x² + 4x² + 3x - 7x - 5 - 9
5x² - 4x - 14
- - - - - - -d-
2007-07-27 08:32:13 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
combine like terms w/ common exponents together:
(x^2+4x^2) + (3x - 7x) + (-5 - 9) =
5x^2 - 4x - 14
2007-07-27 15:06:13 · answer #2 · answered by miggitymaggz 5 · 1⤊ 0⤋
Dear Sunshine.
You've posted several questions on here in the past few minutes. Please do your own homework or you'll never learn.
Thanks,
Carinne
2007-07-27 15:00:23 · answer #3 · answered by misscarinne 4 · 0⤊ 0⤋