## mslorraine √(9x+67=x+5=) 2 years ago 2 years ago

1. cyclects

do u mean $\sqrt{9x+67} = x+5$ find x?

2. mslorraine

yes

3. Avva

now you need to square both sides so it will be $9x+67 = (x+5)^{2}$ $9x +67 = x ^{2} + 10x + 25$ $x ^{2} + x -42 = 0$ I guess it is clear now :) note that you need to get rid of square roots in most problems by squaring you can get rid of it