How do you FOIL (x-2)(x+3)?

embauris960
2022-02-08
Answered

How do you FOIL (x-2)(x+3)?

You can still ask an expert for help

narodiloxe4

Answered 2022-02-09
Author has **19** answers

FOIL stands for "First, Outer, Inner, Last."

"First" refers to the first term of each factor: here, this would be x and x

"Outer" refers to the outermost terms of each factor: here this would be x and 3

"Inner" refers to the innermost terms of each factor (those nearest the middle): here this would be -2 and x

"Last" refers to the last term of each factor: here this would be -2 and 3

Utilizing the foil method, one adds together the indicated products (so the product of the First terms, plus the product of the Outer terms, etc.)

F:$x\cdot x={x}^{2}$

O: x*3=3x

I: -2*x=-2x

L: -2*3=-6

Adding these together yields

${x}^{2}+3x-2x-6={x}^{2}+x-6$

"First" refers to the first term of each factor: here, this would be x and x

"Outer" refers to the outermost terms of each factor: here this would be x and 3

"Inner" refers to the innermost terms of each factor (those nearest the middle): here this would be -2 and x

"Last" refers to the last term of each factor: here this would be -2 and 3

Utilizing the foil method, one adds together the indicated products (so the product of the First terms, plus the product of the Outer terms, etc.)

F:

O: x*3=3x

I: -2*x=-2x

L: -2*3=-6

Adding these together yields

asked 2021-06-03

Determine whether the following function is a polynomial function. If the function is a polynomial function, state its degree. If it is not, tell why not. Write the polynomial in standard form. Then identify the leading term and the constant term.

$g(x)=3-\frac{{x}^{2}}{4}$

asked 2022-01-21

Prove by Mean Value Theorem $\frac{x}{1+x}<\mathrm{ln}(1+x)<x\text{}\text{for}\text{}x0$

asked 2022-02-13

I can't figure out how to do (i + j) x (i x j) for vector calc

asked 2021-12-06

The equation $y(x,t)=A\mathrm{cos}2\pi f(xv-t)$ may be written as $y(x,t)=A\mathrm{cos}\left[2\pi \lambda (x-vt)\right]$ .

Use the last expression for y(x,t) to find an expression for the transverse velocity vy of a particle in the string on which the wave travels. Express your answer in terms of the variables$A,v,\lambda ,x,t,$ and appropriate constants.

Find the maximum speed of a particle of the string. Express your answer in terms of the variables$A,v,\lambda ,x,t,$ and appropriate constants.

Use the last expression for y(x,t) to find an expression for the transverse velocity vy of a particle in the string on which the wave travels. Express your answer in terms of the variables

Find the maximum speed of a particle of the string. Express your answer in terms of the variables

asked 2021-08-18

What is the complex plane? How do we graph a complex number z=a+bi in the complex plane?

asked 2021-05-22

Determine which equations are linear equations in the variables x, y, and z. If any equation is not linear, explain why not.

$3\mathrm{cos}x-4y+z=\sqrt{3}$

asked 2022-02-03

How do you multiply $4{x}^{2}y(-{x}^{2}-x+10)$ ?