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Valentina45
@Valentina45
May 2019
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Bonjour aidez moi s'il vous plait
A=(
B=
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Hello !
A = (-3x-1)(-9x-4)-(10x+10)²
= 27x²+12x+9x+4-(100x²+200x+100)
= 27x²-100x²+12x+9x-200x+4-100
= -73x²-179x-96
B = (5x-6)(5x+6)+(10x-1)²
= (5x)²-6²+(100x²-20x+1)
= 25x²+100x²-20x-36+1
= 125x²-20x-35
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inequation
Bonjour,
Développer et réduire ces expressions:
A= (-3x-1)(-9x-4)-(10x+10)(10x+10)
A= 27x²+9x+12x+4 - (100x²+100x+100x+100)
A= 27x²+21x+4 - 100x²-200x-100
A= -73x² -179x - 96.
B= (5x-6)(5x+6) + (10x-1)(10x-1)
B= 25x²-30x+30x-36+100x²-10x-10x+1
B= 125x²-20x-35
1 votes
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Verified answer
Hello !A = (-3x-1)(-9x-4)-(10x+10)²
= 27x²+12x+9x+4-(100x²+200x+100)
= 27x²-100x²+12x+9x-200x+4-100
= -73x²-179x-96
B = (5x-6)(5x+6)+(10x-1)²
= (5x)²-6²+(100x²-20x+1)
= 25x²+100x²-20x-36+1
= 125x²-20x-35
Développer et réduire ces expressions:
A= (-3x-1)(-9x-4)-(10x+10)(10x+10)
A= 27x²+9x+12x+4 - (100x²+100x+100x+100)
A= 27x²+21x+4 - 100x²-200x-100
A= -73x² -179x - 96.
B= (5x-6)(5x+6) + (10x-1)(10x-1)
B= 25x²-30x+30x-36+100x²-10x-10x+1
B= 125x²-20x-35