Mathematics, 12.06.2021 14:00 SmokeyRN

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.

Answers: 3

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