唔識計...幫下我...Thx!!!!!!
Factorize the following polynomials.
a) b^(3) + 2b^(2)
b) a^(2) + 2a + 1
c) 6x - 9y
d) 6xy - 9y^(2)
e) 5x - 30
f) 11y - 11
g) 3(a - b) - c(a - b)
h) 8a^(2) - 12ab
i) 10a^(2)b + 25ab^(2)
j) 3(x+1)^(2) + 2(x+1)
factorization
2010-07-21 12:47 am
回答 (2)
2010-07-21 1:01 am
2010-07-21 1:03 am
a) b^(3) + 2b^(2) = b^(2) (b+2)
b) a^(2) + 2a + 1 = (a+1)^(2)
c) 6x - 9y = 3(2x-3y)
d) 6xy - 9y^(2) = 3y(2x-3y)
e) 5x - 30 = 5(x-6)
f) 11y - 11 = 11(y-1)
g) 3(a - b) - c(a - b) = (3-c) (a-b)
h) 8a^(2) - 12ab = 4a(2a-3b)
i) 10a^(2)b + 25ab^(2) = 5ab(2a+5b)
j) 3(x+1)^(2) + 2(x+1) = (x+1) (3x+3+2) = (x+1) (3x+5)
I hope these can help you.
b) a^(2) + 2a + 1 = (a+1)^(2)
c) 6x - 9y = 3(2x-3y)
d) 6xy - 9y^(2) = 3y(2x-3y)
e) 5x - 30 = 5(x-6)
f) 11y - 11 = 11(y-1)
g) 3(a - b) - c(a - b) = (3-c) (a-b)
h) 8a^(2) - 12ab = 4a(2a-3b)
i) 10a^(2)b + 25ab^(2) = 5ab(2a+5b)
j) 3(x+1)^(2) + 2(x+1) = (x+1) (3x+3+2) = (x+1) (3x+5)
I hope these can help you.
參考: myself
收錄日期: 2021-04-23 20:44:15
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