Question

1.Find the roots of the following quadratic equation by

factorization:

a) 100x2-20x+1=0

b)6x2-x-2=0 c) 2x²+x-300=0​

Answer 1

Answer:

a.x=1/10

b.

Step-by-step explanation:

a. product=100

sum=20

100x²-10x-10x+1=0

10x(10x-1)-1(10x-1)=0

(10x-1)(10x-1)=0

x=1/10

b.product=-600

sum=1

take out factors and see what is matching with the sum

factors= 25,-24

2x²-24x+25x-3000

2x(x-12)25(x-12)0

(2x+25)(x-12)=0

either x=-25/2

x=-12.5

OR

x=12