x-3 by x-4 + x-5 by x-6 = 10 by 6
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The answer is -1080 because of (-) (-) =+
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step by step explanation
(x-3)(x-4)+(x-5)(x-6)=60
=x²-7x+12+x²-11x+30=60
=2x²-18x+42=60
=2x²-18x=18
=2x²=18+18x
=x²=(18+18x)/2
=x²=9+9x
=x=3+3x
=x-3x=3
=(-2x)=3
=2x=(-3). (variable can't be negative)
=x=(-1.5)
please mark me as brainliest
(x-3)(x-4)+(x-5)(x-6)=60
=x²-7x+12+x²-11x+30=60
=2x²-18x+42=60
=2x²-18x=18
=2x²=18+18x
=x²=(18+18x)/2
=x²=9+9x
=x=3+3x
=x-3x=3
=(-2x)=3
=2x=(-3). (variable can't be negative)
=x=(-1.5)
please mark me as brainliest
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