Question

(3x+10) (4x-10) Solution:​

Answer 1

x=20

Explanation:

1. equate 3x+10 to 4x.
2. collect like terms
3. simplify and you have your answer

Answer 2

FOIL

To multiply binomials, we use a special method called FOIL.

FOIL stands for:

• First
• Outside
• Inside
• Last

So let's apply this to our problem.

The first terms are 3x and 4x. Multiplying them, we get 12x².

The outside terms are 3x and -10. Multiplying them, we get -30x.

The inside terms are 10 and 4x. Multiplying them, we get 40x.

The last terms are 10 and -10. Multiplying them, we get -100.

Combining all the terms, I get 12x² -30x + 40x - 100.

Combining the x terms: 12x² + 10x - 100.

• Therefore, the solution is
  `\bf{12x^2+10x-100}`.

`\rule{350}{4}`

`\frak{-Dream-}`