So there is this equation that I've been trying to solve but keep having trouble with.
The unit is about solving Radical equations and the question says
Solve:
√x+19+√x−2=7
I don't want the answer blurted, I want to know how it's done, including steps please.
Thank you!
Answer
√x+19+√x−2=7
Squaring both sides, we have
x+19+2√x+19√x−2+x−2=49
Collecting terms, we have
2x+17+2√x2+17x−38=49
√x2+17x−38=32−2x2
Squaring again
x2+17x−38=1024−128+4x24
x2+17x−38=256−32x+x2
49x=294
∴x=29449=6
We can easily verify that this is a correct solution.
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