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(5b+1)(3b-2)
You know that 15 only has four factors: 1,3,5, and 15. So the first numbers in the parenthesis are either going to be 1 and 15, or 3 and 5. I would try 3 and 5 first because they are closer together, and the other coefficients in the problem are not super large. So I had (5b )(3b ). Then, I looked at -2. There are two ways to get that: -2 x 1 or -1 x 2. Put one set into the parenthesis, foil it out and see if its right. If not, try the other. That's it!
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What is the factor of 21ab 14b?
You can take 7b out of both of those, leaving 3a and 2
What is the greatest common factor in 21ab and 14b?
Well, honey, the greatest common factor in 21ab and 14b is 7b. You see, 21 can be broken down into 3 x 7, and 14 can be broken down into 2 x 7. And since they both have a b in common, that's your greatest common factor right there. Math made sassy!
What is the greatest common factor of 21ab and14b?
The GCF is 7b.
What is the greatest common factor of 7B -7?
The GCF is 7.
What is the greatest common factor of 28a and 49ab?
7a 7a * 4 = 28a 7a * 7b = 49ab
What is the factor of 21ab 14b?
You can take 7b out of both of those, leaving 3a and 2
How do you factor -5b2 plus 7b-2?
It is: (-5b+2)(b-1) with the help of the quadratic equation formula
How do you factor b2 - 7b plus 12?
b^2 - 7b + 12 = b^2 - 4b - 3b + 12 = b(b -4) -3(b - 4) = (b - 3)(b - 4)
What is the Greatest common factor of 21ab 14b?
7b
Factor the expression 100A2 - 49B2?
100a2 - 49b2 is the difference of two perfect squares. Therefore, it is equal to the sum times the difference of the roots: (10a + 7b)(10a - 7b)
What is the answer to 3 times 7b minus 2?
The question is worded amibiguously. Do you mean 3(7b)-2, or 3(7b-2)? 3(7b) - 2: 2 = 21b 2/21 = b 3(7b -2): 21b - 6 = 0. 21b = 6 b = 6/21 = 2/7.
What is the greatest common factor in 21ab and 14b?
Well, honey, the greatest common factor in 21ab and 14b is 7b. You see, 21 can be broken down into 3 x 7, and 14 can be broken down into 2 x 7. And since they both have a b in common, that's your greatest common factor right there. Math made sassy!
What is the greatest common factor of 21ab and14b?
The GCF is 7b.
What is the greatest common factor of 7B -7?
The GCF is 7.
Factor completely a2 ab 42b2?
(a - 7b)(a + 6b)
Does 7b minus 2 equal 5b?
No. 7b - 2b = 5b
How do you factor 6b2-7b-20?
(-3b - 4)(-2b + 5)
