Question

m^2 -7= 0
solve using factorisation.​

Answer 1

Answer:

m^2-7=0

m^2-(√7)^2=0. [ using a^2-b^2=(a+b)(a-b) ]

(m+√7)(m-√7)=0

this implies,

(m+√7)=0 (m-√7)=0

m= -√7,√7

alternative way,

m^2-7=0

m^2=7

m= plus minus √7

m= +√7 , -√7

hope it helps you

please mark brainliest