Question

Find the value of
mn if m+n =8 and m-n =2​

Answer 1

Values are

5 and 3

And so the answer is 15

If m=x and n=8-x

Then According to the problem

X-(8-X)=2

OrX-8+x=2

Or2x-8=2

Or2X=8+2

OrX=10/2

Or X=5

Thus m=x=5 and n =8-x=8-5=3

m=5 && n=3

Answer:

Mn= 5×3=15

Answer 2

Answer:

$\huge{\fbox{\pink{\mathcal{YourAnswer}}}}$

$m - n = 2 \\ m = 2 + n$

Therefore,

$putting \: value \: of \: m \: in \: m + n = 2$

$(2 + n) + n = 8 \\ n + n = 8 - 2 \\ 2n = 6 \\ n = 6 \div 2 \\ n = 3$

Then,

$m + n = 8 \\ m = 8 - n \\ m = 8 - 3 \\ m = 5$

Now,

$mn = 5 \times 3 \\ mn = 15$

$<marquee behaviour-move><font color="violet black"><h1>Hope it helps you</ht></marquee>$