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vildeis
@vildeis
August 2022
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ПОМОГИТЕ СРОЧНО НАДО
упростите выражение
3n² -n (4n-6m)
5a+2a(3a+5)
a(a+b)-b(a-b)
2x(x-y)-y(y--2x)
2p(1 -p-3p²)-3p(2-p-2p²)
2c (5a-3c² )-c(a-6c²)+3a(9a-c)
раскройте скобки
с(2а+b )
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coolpandaRF
3n²-n(4n-6m) = 3n²-4n²+6mn = -n²+6mn
5a+2a(3a+5) = 5a+6a²+10a = 15a+6a²
a(a+b)-b(a-b) = a²+ab-ab+b² = a²+b²
2x(x-y)-y(y-2x) = 2x²-2xy-y²+2xy = 2x²-y²
2p(1-p-3p²)-3p(2-p-2p²) = 2p-2p²-6p³-6p+3p²+6p² = -4p+p²-3p³
2c(5a-3c²)-c(a-6c²)+3a(9a-c) = 10ac-6c³-ac+6c³+27a²-3ac = 6ac+27a²
с(2а+b) = 2ac+ab
2 votes
Thanks 3
funnyHij
3n²-n(4n-6m) = 3n²-4n²+6mn = -1n²+6mn;5a+2a(3a+5) = 5a+6a²+10a = 15a+6a²;a(a+b)-b(a-b) = a²+ab-ab+b² = a²+b²;2x(x-y)-y(y-2x) = 2x²-2xy-y²+2xy = 2x²-y²;2p(1-p-3p²)-3p(2-p-2p²) = 2p-2p²-6p³-6p+3p²+6p² = -4p+p²-3p³;2c(5a-3c²)-c(a-6c²)+3a(9a-c) = 10ac-6c³-ac+6c³+27a²-3ac = 6ac+27a²;с(2а+b) = 2ac+cb.
3 votes
Thanks 1
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Answers & Comments
5a+2a(3a+5) = 5a+6a²+10a = 15a+6a²
a(a+b)-b(a-b) = a²+ab-ab+b² = a²+b²
2x(x-y)-y(y-2x) = 2x²-2xy-y²+2xy = 2x²-y²
2p(1-p-3p²)-3p(2-p-2p²) = 2p-2p²-6p³-6p+3p²+6p² = -4p+p²-3p³
2c(5a-3c²)-c(a-6c²)+3a(9a-c) = 10ac-6c³-ac+6c³+27a²-3ac = 6ac+27a²
с(2а+b) = 2ac+ab