Question

(X^2-2)(5x+1)=(x^2)(5x)+(x^2)(1)+(-2)(5x)+(-2)(1) is an example of: a. vertical multiplication b. Complex conjugated c. FOIL d. Dividing two binomials

Answer 1

Answer: the correct answer is D

Step-by-step explanation: just did it on the test its FOIl option D

Answer 2

C

Explanation:

The FOIL method is a handy way to remember how to multiply two binomials.

It stands for "First, Outer, Inner, Last" and works as

• multiplying the First terms,
• multiplying the Outer terms,
• multiplying the Inner terms,
• multiplying the Last terms,
• finding the sum of all products.

In your case it looks like

`(x^2-2)(5x+1)=x^2\cdot 5x+x^2\cdot 1+(-2)\cdot 5x+(-2)\cdot 1.`