Question

3m(m-3) +4(m-3)=0 find m​

Answer 1

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3m(m-3) + 4(m-3) = 0

=> (m-3)(3m+4) = 0

For the above expression to be zero,

Either, m - 3 = 0 => m = 3

or, 3m + 4 = 0 => m = -4/3

Thus, m = 3 or -4/3.

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Answer 2

3m(m-3) +4(m-3)=0

3m² - 9m + 4m - 12 = 0

3m² - 5m -12 = 0

3m² - 9m + 4m -12 = 0

3m(m-3) + 4(m-3) = 0

(3m+4) (m-3)

•3m + 4 = 0 • m - 3 = 0

3m = -4 m = 3

m = -4/3

so, here m = -4/3 and 3

but we take positive value of m that is 3

m = 3

Hope it helps you :)