Math, asked by arifasherin3900, 1 month ago

Solve by factorisation method 7m2=21m

Answers

Answered by apurvabhamare21
0

Answer:

m=3

Step-by-step explanation:

[7m]2=[21m]

=(m)2=3m

=m=3

Answered by kartikjadhav131006
4

Answer:

7m {}^{2}  = 21  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\  \:  \:  \:  \: 7m {}^{2}  - 21m = 0  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \\ 7m  \: {{m - 3}} = 0 \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \\ therefore  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \\ 7m = 0 \: or \: m - 3 = 0 \\  m \:  = 0 \: or \: m = 3 \:  \:  \:  \:  \:  \:  \:   \\

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