Alberta Free Tutoring And Homework Help For Math 20-2

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Select one of the methods to determine the roots of the equation 5x^2 + 2x + 15 = 4x^2 + 13x - 15 

verify the roots and show all steps 

6 years ago

Answered By Victor S

5x2+2x+15=4x2+13x-15

Move all the terms one 1 side of the equation, we get:

5x2-4x2+2x-13x+15+15=0

x2-11x+30=0

x2-5x-6x+30=0

x(x-5)-6(x-5)=0

(x-5)(x-6)=0

(x-5)=0 OR (x-6)=0

The roots of the equation 5x2+2x+15=4x2+13x-15 are: x=5 OR x=6

The roots are