Mathematics: . Multiply (5x2 + x − 4)(x + 2).

. Multiply (5x2 + x − 4)(x + 2). - id52427320531, dearash1730

skybrinson04

13.07.2020

See Explanation

Step-by-step explanation:

The question is incomplete, as the function is not given. A little explanation to assist you is as follows;

From the attached image, one can sense that the function is a piece-wise function.

Now, assume the function is as follows:

$f(x) =\left \{ {{2x + 1\ -1 < x < 3} \atop {4x + 7, x \ge 3}} \right.$

To calculate f(2), we make use of:

f(x) =2x + 1 -1 < x < 3

Because 2 is within -1 < x < 3

So:

f(2) = 2 * 2 + 1 =5

Similarly, to calculate f(3)

We make use of

f(x) = 4x + 7

Because 3 is within $x\ge 3$

So:

f(3) = 4 * 3 + 7 =19

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