Question

5m²=22m+15 Solve this quadratic equation by factorisation.

Answer 1

Hi ,

It is given that ,

5m² = 22m + 15

5m² - 22m - 15 = 0

Splitting the middle term we get

5m² - 25m + 3m - 15 = 0

5m( m - 5 ) + 3( m - 5 ) = 0

( m - 5 )( 5m + 3 ) = 0

Therefore ,

m - 5 = 0 or 5m + 3 = 0

m = 5 or 5m = -3

m = 5 or m = -3/5

I hope this helps you.

: )

Answer 2

Heya !!

5M² = 22M + 15

5M² - 22M - 15 = 0

5M² - 25M + 3M - 15 = 0

5M ( M - 5) + 3 ( M - 5) = 0

( M - 5 ) ( 5M + 3 ) = 0

( M - 5 ) = 0 OR ( 5M + 3 ) = 0

M = 5 or M = -3/5.