2007-12-12 00:17:01 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Collect like terms.
Like terms are terms with the same "letters" to the same power.
For example 2a^2 and 3a^2 are like terms because "letters" (variables) are the same and to the same power = 5a^2
3a^2 and 4a^3 are not like terms, because power of a in the first term is 2, in the second is 3.
Good Luck
2007-12-12 00:22:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋
w ² - 2 w + 1 + 2 w - 5 + w ²
2 w ² - 4
2007-12-12 11:27:10 · answer #2 · answered by Como 7 · 1⤊ 0⤋
w second power (w^2) +w+1=0
therefore
w^2= -w-1
substitute this value of w^2 in given equation,
after sustitution equation will become
(-w-1-2w+1) + (2w-5-w-1)
= -3w+w-6
= -2w-6
-2(w+3)
2007-12-12 08:29:35 · answer #3 · answered by eclipse 2 · 0⤊ 0⤋
w² - 2w + 1 + 2w - 5 + w²
= 2w² -4
2007-12-12 08:20:03 · answer #4 · answered by mountainpenguin 4 · 0⤊ 0⤋
UGH I HATE THESE PROBLEMS.
2007-12-12 08:18:41 · answer #5 · answered by Anonymous · 0⤊ 2⤋