Answer:
1.x^2-5x
2.2x^2+15x+18
3. x^2+20x+18
Step-by-step explanation:
1. x(x-5) x*x-5*x = x^2-5x
2. (x+6)(2x+3) x*2x+x*3+6*2x+6*3= 2x^2+15x+18
3.(2x^2+15x+18)-(x^2-5x)=x^2+20x+18
Answer:
12.9
Step-by-step explanation:
cos 72 = 4/x
x = 4/cos72
x = 12.9
Answer:
It would be 63
Step-by-step explanation:
This is because 9 x 7 = 63
Simple math.
Answer:
Step-by-step explanation:
i assume x+y=6(1/2)=\frac{13}{2}

Answer:
85 remaiinder of 16
Step-by-step explanation: