# Math

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One-third of Derick's age two years ago is equal to a quarter of his age four years from now. How old is he now?

-Representation
-Equation
-Solution
-Checking

• Math -

Let x = Derick's age now.

(x-2)/3 = (x+4)/4

Solve for x.

4(x-2) = 3(x+4)
x = 12+8 = 20
Two years ago he was 18. 1/3 of that is 6
Four years from now he is 24. 1/4 of that is also 6.

• Math -

Factorize 2x2square+8x - 10=0

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