Replace a with the length of the given leg and c with the length of the hypotenuse and solve for b:
7^2 + b^2 = 25^2
Simplify"
49 + b^2 = 625
Subtract 49 from each side:
b^2 = 625 - 49
b^2 = 576
Take the square root of both sides to solve for b:
b = √576
b = 24
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You can subtract to find the other part
2d^2 -2d-7
(14d^2 - 8) + (6d^2 - 2d + 1)
14d^2 - 8+ 6d^2 - 2d + 1
20d^2 - 7 - 2d
20d^2 - 2d - 7
Linear, because the X is increasing by one!