(x+y-3)(x+y+3) = x^2+xy+3x+xy+y^2+3y-3x-3y-9 = -9+x^2+y^2+2xy
Top right is ur answer please give brainliest
Answer:
1/6
Step-by-step explanation:
4/9&3/8
4/9x3/8= ?
Multiply both numerators
= 4 x 3
= 12
Multiply both denominators
= 9 x 8
= 72
Use above values of step 2 & 3, and rewrite as below
= 12/72
so, 12/72 is equivalent to the fraction for 4/9 times of 3/8, and its simplified form is 1/6.
We need to find m first.
m+n=12, n=5 (plug in n as 5)
m+5=12 (subtract both sides by 5)
m=7
m-n: we know that m is 7 and n is 5
7-5=2
The final answer is 2.
