Question

Find the roots of the following quadratic equations by factorization.. vertification also
x² – 3x - 10=0​

Answer 1

Answer:

x=-2 or +5

Step-by-step explanation:

x²-5x+2x-10=0

x(x-5)+2(x-5)=0

(x+2)(x-5)

checking...

(-2)²-3(-2)-10

=4+6-10

=10-10

=0

(5)²-3(5)-10

=25-15-10

=10-10

=0

Answer 2

Answer:

−3x−10=0

=>   −(5−2)x−10=0

=>   −5x+2x−10=0

=>  x(x−5)+2(x−5)=0

=>  (x+2)(x−5)=0

=>  x=−2  & x=5