Answer:
Step-by-step explanation:
(x+3)(x-3)
x squared and -9 are both square numbers.
the square root of x^2 is x
the square root of -9 is 3. so you just need to write (x+3)(x-3)
you can check by expanding the brackets and the middle x terms should cancel out
If you're talking about unit cubes, then the equation is
length*width*height
78 pupils,
32r =18
R=3a-18
R= 3(32)-18
R=96-18
50/x = 42 / 63
x = 50 * 63 / 42
x = 75
Answer:
ady
Step-by-step explanation:
