Question

.Add 5m(3-m) and 10m2 + 10m

Answer 1

Step-by-step explanation:

Changes made to your input should not affect the solution:

 (1): "m2"   was replaced by   "m^2". 

STEP1:Equation at the end of step 1

((2•5m2) - 3m) - 4

STEP2:Trying to factor by splitting the middle term

 2.1     Factoring  10m2-3m-4 

The first term is,  10m2  its coefficient is  10 .

The middle term is,  -3m  its coefficient is  -3 .

The last term, "the constant", is  -4 

Step-1 : Multiply the coefficient of the first term by the constant   10 • -4 = -40 

Step-2 : Find two factors of  -40  whose sum equals the coefficient of the middle term, which is   -3 .

     -40   +   1   =   -39     -20   +   2   =   -18     -10   +   4   =   -6     -8   +   5   =   -3   That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -8  and  5 

                     10m2 - 8m + 5m - 4

Step-4 : Add up the first 2 terms, pulling out like factors :

                    2m • (5m-4)

              Add up the last 2 terms, pulling out common factors :

                     1 • (5m-4)

Step-5 : Add up the four terms of step 4 :

                    (2m+1)  •  (5m-4)

             Which is the desired factorization

Answer 2

Answer:

$\bold\red{ \: AnswER \: }$

700 gm as a percentage of 2.8 kg

700 gm as a percent of 2.8 kg is given below

We know that,

1 kg = 1000 gm

Thus, 2.8 kg = 2800 gm

So,

700 / 2800 × 100 = 700 / 28

= 100 / 4

We get,

= 25%