Question

1)Factors of 6m²+12m-90 are??​

Answer 1

Answer:

m=-5 and m=3

Step-by-step explanation:

so we are going to use quadratic formula two where m≠1

first step is to times 6 and -90 which gives you the answer as-540

the factors of the last number and add them should give you the number in the middle which is 12.

thus the factors of -540 is 30 and -18

30 +-18 =12

then in place of 12 you will put the factors of -540

6m^2 +30m-18m-90

then second step is grouping

(6m^2+30m)(-18m-90)

take the common factors outside

6m(m+5)-18(m+5)

(m+5)(6m-18)=0

third step is the null factor law

(m+5)=0                         and                          (6m-18)=0

fourth step is making the "m" your subject of the formula

m+5=0                     6m-18=0

m=-5                             6m=18

                                       m=3

hope this will help you out