Sagot :
Answer:
x = √6 or - √6
Step-by-step explanation:
equation: -7x + 6 = x² - 7x
switch sides:
x² - 7x = -7x + 6
Add 7x to both sides,
x² - 7x + 7x = -7x + 7x + 6
x² = 6
For x² = f(a) the solution are x = √f(a), -√f(a)
x = √6 , x = - √6
Answer:
-7x + 6 = x² - 7x
-7x + 7x +6 - x² = 0
0 + 6 - x² = 0
-x² + 6 = 0
-x² = (-6)
x² = 6
x = ±√6
x =√6 or x = -√6