9x(2x-5)-7(2x-5)-3x(5x-3)-8(5x-3)
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10
Answer:
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Answered by
1
Answer:
3x²-90x+59
Step-by-step explanation:
step-1,
distribute
9x(2x-5)-7(2x-5)-3x(5x-3)-8(5x-3)
=18x²-45x-7(2x-5)-3x(5x-3)-8(5x-3)
step-2
18x²-45x-7(2x-5)-3x(5x-3)-8(5x-3)
=18x²-45x-14x+35-3x(5x-3)-8(5x-3)
step-3
18x²-45x-14x+35-3x(5x-3)-8(5x-3)
=18x²-45x-14x+35-15x²+9x-8(5x-3)
step-4
18x²-45x-14x+35-15x²+9x-8(5x-3)
=18x²-45x-14x+35-15x²+9x-40x+24
step-5
add the numbers,
18x²-45x-14x+35-15x²+9x-40x+24
=18x²-45x-14x+59-15x²+9x-40x
step-6
combine like terms
18x²-45x-14x+59-15x²+9x-40x
=18x²-90x+59-15x²
step-7
18x²-90x+59-15x²
=3x²-90x+59
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