Question

3x
$3x ^{2} + 2x - 9 = 0$
+2x-9=0​

Answer 1

Answer:

200) of the text. ... Square Root Principle. If x2 = k, then x = ± sqrt(k). Example 2. x2 - 9 = 0. x2 = 9. ... x2 + 3x + 9/4 = 5/2 + 9/4. ... In the example before that, 2x2 + 6x - 5 = 0, we found two real solutions, x = (-3 ...