Saturday
April 19, 2014

Homework Help: Math SCREAMING for HELP

Posted by Sabrina on Friday, September 24, 2010 at 9:19pm.

Use the quadratic formula to slove the equation.
x^2-x=-7
This is what I have got so far and I do not think this is right:
x=1(-1)√-1^2-4(1)(7)/2(1)
x=1√1-4(7)/2
x=1√-21/2
x=1-21/2
and here I am lost!

Use rational exponents to simplify. √(5&x^10 )

Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represent positive numbers. ∛(〖125x〗^11/y^3 )

Multiply. (-2t)^2 (〖3t〗^7 )

Divide and simplify. (3y-6)/14(y-2)/4y

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