7m²-63=0by using factorisation method
Answers
Answered by
0
Step-by-step explanation:
7(m^2-9)=0
7(m-3)(m+3)=0
m-3=0. m+3=0
m=3. m=-3
Answered by
0
Answer:
m is ±3
Step-by-step explanation:
7m² - 63 = 0
7m² = 63
m² = 63/7
m² = 9
m = √9
m = ±3
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