Use square roots to solve
x2 - 10x + 25 = 144
x2 - 10x + 25 = 144
Answer:
x = 7
Step-by-step explanation:
Factor the problem to get (x - 5)^2 = 144
Square root to get x + 5 = 12
Subtract 5 to get x = 7
Answer: x = 17
Step-by-step explanation: Factor the equation to get
(x - 5)² = 144
Take the square root of each side to get
x - 5 = 12 Add 5 to both sides.
x = 17
Check:
17² - 10(17) + 25 = 144
289 - 170 + 25 = 144
119 +25 = 144. true.
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