Question

solve by the roots of polynomial equation 5x^2-30x+45=0

Answer 1

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

30*x-45-(5*x^2)=0

Step by step solution :

Step 1 :

Raise x to the 2nd power
Exponentiation :

Equation at the end of step 1 :

(30x - 45) - (5 • x2) = 0
Step 2 :

Simplify 30x-45 - 5x2
Step 3 :

Pulling out like terms :

2.1 Pull out like factors :

-5x2 + 30x - 45 = -5 • (x2 - 6x + 9)