Question

factorise 12m²-28m+15​

Answer 1

Answer:

12m^2 - 28m + 15                             12m^2 x 15

12m^2 - 18m   - 10m + 15                   = 180m^2

6m (2m - 3) - 5 (2m - 3)                     = -18m -10m

= (6m - 5) (2m - 3)

this is the final answer...

Answer 2

This question will be solved by middle term Spilliting,

You have to write the middle term as the sum or difference of the product of first and third term, so,

Factors of 12*15 i.e. 180 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90.

12m^ - 10m - 18m + 15

2m ( 6m - 5) - 3 ( 6m - 5) [ by taking common]

(2m-3) (6m-5)

Hence factorised.

HOPE IT HELPS❤.