Multiplying polynomials and simplifying expressions

Given:

Resulting form =

To find:

The value of a in the polynomial.

Solution:

Using distributive property:

Now multiply each of the first term with each of the second term.

Applying plus minus rule:

Apply the exponent rule:

Let us compare this with the given resulting form:

On comparing above two expression, we get a = 16.

The value of a in the polynomial is 16.

the answer is 14ft

step-by-step explanation:

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21