Homework Help: 8th Grade Algebra:Radicals

Posted by Joy on Wednesday, January 14, 2009 at 11:13pm.

{ this means means square root

How do you solve these kind of radicals:
1. (5-{14)*(3-{2)

2. (4{2+2)*(3{3-1)

Can someone show me how to do these correctly please ?

8th Grade Algebra:Radicals - Reiny, Wednesday, January 14, 2009 at 11:41pm
1. (5-{14)*(3-{2)
I read that as
(5 - √14)(3 - √2)
= 15 - 5√2 - 3√14 + √28
= 15 - 5√2 - 3√14 + 2√7

2. (4{2+2)*(3{3-1) is it..
(4√2 + 2)(3√3 - 1) ??
= 12√6 - 4√2 + 6√3 - 2
8th Grade Algebra:Radicals - Joy, Thursday, January 15, 2009 at 1:00am
Yes.

Thank You very much.

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