+73 Solve each equation and express your answer in simplest radical form:
1.) -x^2 + 4x = 13
2.) 5x - 7x^2 = 3x + 4
Answers: 1.) https://web2.0calc.com/questions/solve-each-equation-and-express-your-answer-in-simplest_3
2.) https://web2.0calc.com/questions/solve-each-equation-and-express-your-answer-in-simplest_4
+37146 1 -x^2 + 4x = 13
-x^2+4x-13 = 0 simplify things by multiplying by -1 (not NECCESSARY) and use Quadratic Formula
x^2-4x+13 = 0
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\) a = 1 b = -4 c = 13
results in x = 2+-3i
You can try the second one...
7x^2-2x+4 = 0 Quadratic formula a = 7 b = -2 c = 4
