Question

(5m-4)^2 ???

Answer 1

To expand this it will help to write it like this:
(5m-4)(5m-4)
Now, you can FOIL it out to expand it

Answer 2

After expanding, it will turn out to be a quadratic in m. Solve it for two possible values of m.

Answer 3

so what will the answer be??

Answer 4

@vinnv226

Answer 5

@broderick365 Do you know how to FOIL?

Answer 6

no

Answer 7

@sumi29 ???

Answer 8

no @vinnv226

Answer 9

Ok, use the formula:\[(a+b)^2=a^2+2ab+b^2\]

Answer 10

25m^2+16-40m

Answer 11

Put a as 5m, b as -4. Tell us what you get.

Answer 12

25m^2 +16

Answer 13

@broderick365 : Where is the 2ab term?