Solving the quadratic equation $W(W+2)-7=2W(W-3)$

145 Views Asked by At

Did I solve the following quadratic equation correctly.

$$W(W+2)-7=2W(W-3)$$

I got.

$$W^2-8W+7$$ Then for my solution I got.

$$(W-1)(W-7)$$

1

There are 1 best solutions below

9
On

$$W(W+2)-7=2W(W-3)$$

$$\Downarrow$$

$$W^2+2W-7=2W^2-6W$$

$$\Downarrow$$

$$W^2-8W+7=0$$

$$\Downarrow$$

$$(W-1)(W-7)=0$$

You're right, well done. The solutions are $W=7$ and $W=1$.

EDIT: It should be written as I showed above, you've omitted "$=0$" part of the equation, intentionally or unintentionally.