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555Математика555
@555Математика555
August 2021
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Очень надо !! СРОЧНО!
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nervin89
Б)(7mn-3,5)(7mn+3,5)
0 votes
Thanks 0
555Математика555
почему 3,5 ... может 2?
selmash21
14мн^2-7н=7н(2мн-1)
а^4+а^3=а^3(а+1)
2z^5-4z^3=2z^3(z^2-2)
4a^2-4ab+b^2=(2a-b)^2
1/4a^2+ab+b^2=(1/2a+b)^2
b^2-2a^2b+a^4=(b-a^2)^2
a^2-9y^2=(a-3y)(a+3y)
49x^2-121a^2=(7x-11a)(7x+11a)
-3a^2y-12y^2=-3y(a^2-4y)
3c^5+7c^7-8c^8=c^5(3+7c^2-8c^3)
5x^2-10x^3-15x^4=5x^2(1-2x-3x^2)
81x^2-y^2=(9x-y)(9x+y)
100a^2-25b^2=(10a-5b)(10a+5b)
36p^2-c^2=(6p-c)(6p+c)
144y^2-16k^2=(12y-4k)(12y+4k)
2 votes
Thanks 1
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Answers & Comments
а^4+а^3=а^3(а+1)
2z^5-4z^3=2z^3(z^2-2)
4a^2-4ab+b^2=(2a-b)^2
1/4a^2+ab+b^2=(1/2a+b)^2
b^2-2a^2b+a^4=(b-a^2)^2
a^2-9y^2=(a-3y)(a+3y)
49x^2-121a^2=(7x-11a)(7x+11a)
-3a^2y-12y^2=-3y(a^2-4y)
3c^5+7c^7-8c^8=c^5(3+7c^2-8c^3)
5x^2-10x^3-15x^4=5x^2(1-2x-3x^2)
81x^2-y^2=(9x-y)(9x+y)
100a^2-25b^2=(10a-5b)(10a+5b)
36p^2-c^2=(6p-c)(6p+c)
144y^2-16k^2=(12y-4k)(12y+4k)