Question

The root of eq x2-2x_35=0 is

Answer 1

Answer:

Roots of the equation are x= 7 , -5

Step-by-step explanation:

Given Equation is : x2-2x-35=0

 Finding roots means how many numbers/roots satisfies the given equation , that when we place them in the equation it becomes 0.

a=1 ; b=-2 , c=-35

We have to split c in such a way that when those two numbers are multiplied gives c and when added gives b

Therefore the equation can be written as

x2-7x+5x-35=0 (since -7+5=-2 and -7*5=-35)

Taking commons

x(x-7)+5(x-7)=0

Taking x-7 as common

(x-7) (x+5)=0

Hence either x-7=0 or x+5=0

 x=7 , x=-5

Hence the roots of the equation are x= 7 , -5