169k views
4 votes
square root of X+15 plus square root of X = 15. By observation, X=49 but when I square terms to remove radicals I don't get the desired result???

1 Answer

1 vote
√x+15 + √x=15
√(x+15)=15-√x
x+15=225-30√x +x
30√x=210
√x=7
x=49
☺☺☺☺
User William Gunn
by
7.6k points

No related questions found