In a school there are four classes, and the number of boys in the classes is 7x 2 + y
2 + z
2 −

a
2
, a
2 + 5x
2 − 3y
2 + z
2
, 2y
2 − z
2 − 3x
2
, 3x
2 − z
2
respectively. Show that the number of boys
in the school is 768, if x = 8.

Yes

Step-by-step explanation:

Algebraic terms that multiply each other can be written in any order. This is the commutative law.

An example of how this works is 5×3 is the same as 3×5.

**This content involves the commutative law, which you may wish to revise. I'm always happy to help!

yes

Step-by-step explanation:

yes

x x y = xy

y x x = yx

so its the same thing just depends whether u want to be it in alphabetical order

a

step-by-step explanation: