I'm not that good at math, as I am only in middle school, so please help.
Express the following in simplest form : (−2)4x+2(2)6x−5(8)x
Please don't give me the answer, give me any hints about helpful strategies I can use to solve this.
Source: Mathcounts Lectures (18) Simplifying Algebra Expressions
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I simplified it to 218x2−15x∗(−2)4x+2
But I'm not sure how the -2 will affect the final simplified form
I have vague ideas that (−2)4x+2 will always be positive,
My answer of 2(18x2−15x)(4x+2) (haven't simplified binomials) doesn't seem to be quite correct...
Express the following in simplest form : (−2)4x+2(2)6x−5(8)x
(−2)4x+2(2)6x−5(8)x=((−1)(2))4x+2(2)6x−5(8)x|(ab)c=acbc=(−1)4x+2(2)4x+2(2)6x−5(8)x|ab+c=abac=(−1)4x(−1)2(2)4x+2(2)6x−5(8)x|(−1)2=(−1)(−1)=1=(−1)4x(2)4x+2(2)6x−5(8)x|8=23=(−1)4x(2)4x+2(2)6x−5(23)x|(ab)c=abc(23)x=23x=(−1)4x(2)4x+2(2)6x−5(23x)|abacad=ab+c+d=(−1)4x24x+2+6x−5+3x=(−1)4x24x+2+6x−5+3x=(−1)4x213x−3
wow, I totally messed up the exponent rules!!!
Thanks, I thought this would be a hard problem.