f(8)=13(8)2+11(8)-21

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Solution for f(8)=13(8)2+11(8)-21 equation: 


Simplifying
f(8) = 13(8) * 2 + 11(8) + -21

Reorder the terms for easier multiplication:
8f = 13(8) * 2 + 11(8) + -21

Multiply 13 * 8
8f = 104 * 2 + 11(8) + -21

Multiply 104 * 2
8f = 208 + 11(8) + -21

Multiply 11 * 8
8f = 208 + 88 + -21

Combine like terms: 208 + 88 = 296
8f = 296 + -21

Combine like terms: 296 + -21 = 275
8f = 275

Solving
8f = 275

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '8'.
f = 34.375

Simplifying
f = 34.375

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