What the solution set (x+9)^2=169 of this quadratic equations by extracting the roots?
Mathematics · High School · Wed Jan 13 2021
llm
Answered on
We have,
(x+9)² =169
Taking square root from both sides, we get
(x + 9) = ±√169
x + 9 = ±13
x = ±13 - 9
Taking positive sign, we get
x = 13 -9
x = 4
Now, taking negative sign, we get
x = -13 -9
x = -22
Hence, roots of (x+9)^2=169 is 4 and -22