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denpristay [2]
2 years ago
6

Let f(x) = 5x − 6. Simplify each of the following expressions.

Mathematics
1 answer:
patriot [66]2 years ago
4 0

Answer:

Explanation:

in each of the following substitute x with the variables in the bracket.

f(a) = 5x - 6

= 5a - 6

f(a+h) = 5 (a + h) - 6

= 5a + 5h - 6

f(a+h) - f(a) = (5a + 5h - 6) - (5a - 6)

= 5a + 5h - 6 - 5a + 6

= 5h

(as the 5a's and 6's cancel each other out.)

f(a+h) - f(a)/h = 5a + 5h - 6 - ((5a - 6)÷h)

take l.c.m

= <u>(5ah + 5h^2 - 6h - 5a + 6)</u>

h

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