Question

using factorisation, find the roots of quadratic equations (X-2)²-25=0. (3m)​

Answer 1

Answer:

a²-b² =( a+b)( a-b)

Step-by-step explanation:

(x-2)² - 5² = 0

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

(x+3)(x-7)= 0

x +3=0 or x-7=0

x= -3 , x= 7