Simplify -(- 4x + 5x^2)+\{-7[-2(-9x^2 + 14x-6)–(8x^2 – 20)] –

bmgf3m 2021-12-13 Answered
Simplify (4x+5x2)+{7[2(9x2+14x6)(8x220)]10x}
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Expert Answer

Marcus Herman
Answered 2021-12-14 Author has 41 answers
Here we have given
(4x+5x2)+{7[2(9x2+14x6)(8x220)]10x}
=(4x5x2)+{7[18x228x+128x2+20]10x}
=(4x5x2)+{7[10x228x+32]10x}
=(4x5x2)+{70x2+196x+22410x}
=(4x5x2)+(70x2+186x+224)=75x2+190x+224

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William Appel
Answered 2021-12-15 Author has 44 answers
Simplify the following:
(5x24x)7((8x220)2(9x2+14x6))10x
Factor out the greatest common divisor of the coefficients of 8x220.
Factor 4 out of 8 x220:
(5x24x)7(2(9x2+14x6)(4(2x25)))10x
Factor common terms out of 5x24x.
Factor x out of 5x24x:
(x(5x4))7(2(9x2+14x6)4(2x25))10x
Distribute -2 over 9x2+14x6.
2(9x2+14x6)=18x228x+12:
(x(5x4))7((18x228x+12)4(2x25))10x
Distribute -4 over 2x25.
4(2x25)=8x2+20:
(x(5x4))7((8x2+20)+18x228x+12)10x
Group like terms in 18x28x228x+12+20.
Grouping like terms, 18x28x228x+12+20=(18x28x2)28x+(12+20):
(x(5x4))7((18x28x2)28x+(12+20))10x
Combine like terms in 18x28x2.

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