marvelkhali marvelkhali

09-02-2019
Mathematics

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If F1 = -5x + 4, F2 = - 6x - 5 and F3 = -9x + 2 then simplify F1 × F2 - F3 in terms of x.

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mendelson mendelson

09-02-2019

f1×f2-f3=(-5x+4)×(-6x-5)-(-9x+2)=30x^2-24x+25x-20+9x-2=30x^2+10x-22=(5x+1)^2-23

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