Question

Observe the following pattern and write the next four lines:
$1 {}^{2} + 2 {}^{2} + 2 {}^{2} + = 3 {}^{2}$
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Answer 1

Answer:

(1)^2+(3)^2+(6)^2=(7)^2

(1)^2+(4)2+(12)^2=(13)^2

(1)^2+(5)2+(20)^2=(21)^2

(1)^2+(6)^2+(30)^2=(31)^2