SOLUTION: 1. divide 25b^3+15b^2+25b+38 divided by (5b+5)
2. factor completely 4a^2+49-28a
3. solve, simplify your answer. type an exact answer using radicals as needed. Rationalize all den
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Question 351502: 1. divide 25b^3+15b^2+25b+38 divided by (5b+5)
2. factor completely 4a^2+49-28a
3. solve, simplify your answer. type an exact answer using radicals as needed. Rationalize all denominators. Use a comma to separate answers.
4x^4-8x^2+3=0
4. Multiply. (3x+4)(9x^2+3x+9)
Answer by sofiyac(983) (Show Source): You can put this solution on YOUR website!
Please only submit ONE problem at a time.
1
I did long division on the problem, the reason i did the stars is so that you can see how everything lines up.
******5b^2-2b+7
5b+5**25b^3+15b^2+25b+38
****-(25b^3+25b^2)
***********-10b^2+25b+38
*********-(-10b^2-10b)
******************35b+38
****************-(35b+35)
***********************3 remainder
so the answer would be
2. factor completely 4a^2+49-28a
3. solve, simplify your answer. type an exact answer using radicals as needed. Rationalize all denominators. Use a comma to separate answers.
4x^4-8x^2+3=0
Let y = x² to make it easier.
y = 1/2 or 3/2
x^2 = 1/2 or 3/2
or or
or
now we have to get rid of the radicals on the bottom, we do that by multiplying each answer by
or or
or
4. Multiply. (3x+4)(9x^2+3x+9)
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