Question

Simplify the following expression. (3x + 4)(x − 7)

Answer 1

4x-3

You really just merge all the variables together.

Like 3x and X (3x+1) together make 4x
And, 4-7=-3

Answer 2

Answer:

$3 x^{2}-17 x-28$

Given:

$(3 x+4)(x-7)$

Step-by-step explanation:

The given problem is in algebra, this is because it has both variable and constant.

From question, we need to find the simplified form of the given expression. The simplified form denotes the form which is more understandable form.

Now, we need to multiply the brackets,

$\Rightarrow 3 x^{2}-21 x+4 x-28$

On solving,

$\therefore 3 x^{2}-17 x-28$

Which cannot be solved further.

This expression has ‘x’ to the power 2 which will form second order equation when equated to zero.