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How do I find the answer to 2mn x 9mn if m=2 and n=4. I need help I dont get it
2mn x 9mn if m=2 and n=4
first plug in the numbers: 2(2)(4) x 9(2)(4)
Then multiply them to get your two separate numbers: 2x2x4=16 9x2x4=72
Then multiply the two numbers together: 16x72= 1152
No...
2mn x 9mn [m=2 and n=4]
[2x2x4] x [9x2x4]
[SOLVE WHAT'S IN THE FIRST BRACKET] 2x2=4; 4x4=16 [SOLVE WHAT'S IN THE SECOND BRACKET] 9x2=18; 18x4=72
16x72=1152
your answer is 1152...!
2mn x 9mn [m=2 and n=4]
[2x2x4] x [9x2x4]
[SOLVE WHAT'S IN THE FIRST BRACKET] 2x2=4; 4x2=8 [SOLVE WHAT'S IN THE SECOND BRACKET] 9x2=18; 18x4=72
8x72=576
your answer is 576!!!
mn = 2x4 = 8 on both sides of the equation. So,
2x8 x 9x8 = 16 x 72 = 1152
replace the m's with 2 and the n's with four [(2)(2)(4)] X [(9)(2)(4)]=?
Another solution:
2mn x 9mn = 18m²n²
= 18 x 4 x 16 = 1152
OHHH!!! I GOT A LiL MiXED UP!!! SORRY
WHOA!