Friday

July 25, 2014

July 25, 2014

Posted by **Hannah** on Thursday, September 9, 2010 at 8:56pm.

(2x + 5) 4x - 2x^2(2) / (2x+5)^2

I have no idea what to do for this.

2) Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.

(-3 x^4/7) ^4 / x^-1/2

I know that (-3)^4 would be 81 but I do not know what else to do.

- Math(Please help) -
**bobpursley**, Thursday, September 9, 2010 at 9:15pmon the first, I have no idea what the numerator is.

On the second

(-3)^4 (x^4/7)^4 (x^1/2)=

81* x^(16/7 + 1/2)

YOu can combine that x exponent.

**Related Questions**

Math(Please help) - 1) An expression that occurs in calculus in given. Reduce ...

Math - Reduce each rational expression to lowest terms: 3x^2-12y^2 over x^2+4xy+...

Algebra - Reduce the rational expression to lowest terms 3x^2-9x+6/10-5x

algebra - Reduce each rational expression to lowest terms 3x^2-9x+6/10-5x

algebra - Reduce each rational expression to lowest terms 3x^2-9x+6/10-5x

algebra - Reduce rational expression to lowest terms 3t-6/8-4t

Algebra - 6x +2 ______ 8 Fraction Reduce to lowest terms??? Factor the top ...

Intermiate Algebra - Reduce the Rational expression to lowest terms: 3x2-9x+6/10...

10th grade - reduce each rational expression into lowest terms. 2y+4/3y+6

algebra - Reduce the rational expression to lowest terms 1/15abc (5a^3b^5c^2) =...