Question

solve the following quadratic equations by factorisation. 7m²-84=0​

Answer 1

Answer:

m=+-√12

Step-by-step explanation:

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Answer 2

Answer:

+(√12) & -(√12)

Step-by-step explanation:

7m^2 -84=0

7(m^2 - 12)=0

m^2 - 12 =0

(m+√12)•(m-√12)=0

m= +√12 & m= - √12

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