Answer:
x = 5
Step-by-step explanation:
√(2x − 1) + 2 = x
√(2x − 1) = x − 2
2x − 1 = (x − 2)²
2x − 1 = x² − 4x + 4
0 = x² − 6x + 5
0 = (x − 1) (x − 5)
x = 1 or 5
Check for extraneous solutions.
√(2(1) − 1) + 2 = 1
√(1) + 2 = 1
3 = 1
No solution
√(2(5) − 1) + 2 = 5
√(9) + 2 = 5
5 = 5
x = 5
Second answer: f - 52 = 63.
Answer:
11 7/12 ft tall
Step-by-step explanation:
5 3/4 + (5/6*7)
139/12
11 7/12
Ok. This seems like a quadratic equation.
-5*-3 = 15
and
-5+(-3) = -8
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