Question

suppose m=3 and n=4 find the value of the following
1. mn(2n-3m)
2.m square n + n square m
3. 3(mn)(m+n)


please fast ​

Answer 1

question :-

• suppose m=3 and n=4 find the value of the following

1. mn(2n-3m)
2. m²n + n²m
3. 3(mn)(m+n)

Answer :-

given :-

• m = 3
• n = 4

to find :-

• mn(2n - 3m)
• m²n + n²m
• 3(mn)(m+n)

solution :-

• mn(2n-3m) = (3)(4)[2(4)-3(3)] = 12(8-9) = 12(-1) = -12

• m²n + n²m 7= (3)²(4) + (4)²(3) = (9)(4) + (16)(3) = 36 + 48 = 84

• 3(mn)(m + n) = 3(3×4)(3+4) = 36(7) = 252

answers :-

• mn(2n - 3m) = - 12
• m²n + n²m = 84
• 3(mn)(m+n) = 252

Answer 2

Answer:

-12

Step-by-step explanation:

(3)(4)[2(4)-3(3)]

12[8-9]

12[-1 ]

-12