I need help with my Algebra 2 study guide! Could soneome explain these problems for me?
****Wherver I typed SQRT there is a Square root symbol***
**Multiply & Simplify the following. Do not use decimal apporiximation**
the SQRT of 8 x^ 3 y^2
the SQRT of 75
the SQRT of 32x + 3 and the SQRT of 8x
the SQRT of 3(-3 SQRT 7)
(-4 SQRT 5 + SQRT 2 ) (2 SQRT 5 -3 SQRT 2)
2006-12-02 04:07:44 · 7 answers · asked by Brad C 1 in Science & Mathematics ➔ Mathematics
sqrt(8x^3 * 3y^2)
Your goal is to get the prime factorization, and for every square number that appears, pull it outside of the sqrt symbol AND take the square root of it.
sqrt (4 * 2 * x^2 * x * 3 * y^2)
In this case, our square values are 4, x^2, y^2, so we pull those out as the square roots.
2xy sqrt(2 * x * 3) = 2xy sqrt (6x)
Do the same for the rest.
2006-12-02 04:10:41 · answer #1 · answered by Puggy 7 · 1⤊ 0⤋
SQRT of 8 x^ 3 y^2 = 2*sqrt( 2 )*x^(3/2)*y, because 8 = 2*4
and sqrt( 4 ) = 2
SQRT 75 = 5*sqrt( 3 ), because 3*25 = 75 and sqrt( 25 ) = 5
That should get you started...
2006-12-02 04:26:18 · answer #2 · answered by cainofnod 2 · 0⤊ 0⤋
the SQRT of 75 is: 8.7 which is equilvilent to: 8 and 7/10
2006-12-02 04:24:28 · answer #3 · answered by shelby W 2 · 0⤊ 0⤋
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2016-03-13 01:42:52 · answer #4 · answered by Anonymous · 0⤊ 0⤋
puggy just got you the best solution and answer. he is a math wizard indeed. kudos to you puggy. how'd you get that huh.
2006-12-02 04:24:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
ive no idea but seing nobody else has answre ur question can i have my 10 points now?
2006-12-02 04:12:06 · answer #6 · answered by john r 1 · 0⤊ 0⤋
*Edit*
Puggy answered better than me. Just listen to him/her
2006-12-02 04:09:44 · answer #7 · answered by Cody P 2 · 1⤊ 0⤋