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Luda [366]
3 years ago
13

What is the coefficient in the algebraic expression 7XY squared ?

Mathematics
1 answer:
deff fn [24]3 years ago
3 0
Coefficients are the number(s) before the variables in an equation or expression. Since 7 is before the variables, 7 is the coefficient. Good luck!
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-15g^2 is this monomial and please explain this as dummed down as possible
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Pls help me factorize.Thanks!
Nat2105 [25]

We can change the sign of the second term, so that the two parenthesis are the same:

6(a-1)b^3+3(1-a)b^2 = 6(a-1)b^3-3(a-1)b^2

Now, both terms have in common a 3, becase the numeric factors are 3 and 6. If we factor the 3, we have

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The parenthesis (a-1) is also in common, so we can factor it as well:

3(2(a-1)b^3-(a-1)b^2) = 3(a-1)(2b^3-b^2)

Finally, both terms in the parenthesis contain b^2, because it's the power of b with the lowest exponent:

3(a-1)(2b^3-b^2) =3(a-1)b^2(2b-1)

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3b^2(a-1)(2b-1)

You can swap the order of the four factors (3, b^2, a-1 and 2b-1) as you like: the multiplication is commutative.

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Answer:

It would turn into (x, -y)

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4 years ago
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