Posted by **SO LOST** on Wednesday, March 30, 2011 at 12:39am.

wanted to know if I got the correct answer?

question (2a10b2)(3a2b2)

answer 6a^12+5a^12b^4+b^4

- math algebra -
**Jai**, Wednesday, March 30, 2011 at 2:02am
do you mean something like this: [2(a^10)(b^2)][3(a^2)(b^2)]

if so, then

for constants, we just multiply them normally,, for the variables, recall some laws of exponent,, multiplying terms of same base is also equal to base raised to sum of its exponents,, for example

5^2 * 5^5 = 5^(2+5) = 5^7

x^3 * x^(-4) = x^(3-4) = x^(-1)

thus

for constants: 2*3 = 6

for base a: a^10 * a^2 = a^12

for base b: b^2 * b^2 = b^4

multiplying all of them, we have

6a^12*b^4

hope this helps~ :)

- math algebra -
**arham**, Thursday, January 12, 2012 at 11:42pm
one number is 5times anotherand their sum is 438.whatare the number?give answer in part a,b and c

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