Question

Factorise
10m² - 31m - 132​

Answer 1

Step-by-step explanation:

10m² - 31m - 132

-b +/- √b^2 -4ac/2a

31 +/- √ 961+5280/20

31 +/- 79/20

31+79 /20 or 31-79/20

110/20 or - 48/20

55/10 or -24/10

5.5 or -2.4