How do you simplify #( 8x^2 -9x - 1) - ( -6x^2 + 4x - 8 )#?

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Answer 1 · 2016-01-31T11:09:19

See explanation..

#(8x^2-9x-1)-(-6x^2+4x-8)#

Always remember that if we need to subtract we need to change the signs.

#rarr8x^2-9x-1+6x^2+4x-8#

#rarr14x^2-9x-1+4x-8#

#rarr14x^2-5x-1-8#

#rarr14x^2-5x-9#

Factor

#rarr(14x+9)(x-1)#

See the video for better explanation: