Simplify this equation

Mathematics

2 answers:

marissa [1.9K]3 years ago

7 0

Use the special cases of squared polynomials:

$(a+b)^2 = a^2 + 2ab + b^2$

Substitute the given equation.

$(a-2)^2 = a^2 + 2(a)(-2) + (-2)^2$

$a^2 -4a+4$

aleksklad [387]3 years ago

6 0

A^2 - 4a + 4
hope this helps!

You might be interested in

john is 35 years old,and his son is 5. how many years will john be exactly 3 times as old as his son?

motikmotik

(35+t)/(5+t)=3 --> 35+t = 15+3t --> 20=2t --> t=10 years

Dad: 45, son: 15 (works!)

6 0

3 years ago

Read 2 more answers

the line segment AB is rotated through 90° clockwise about the point C. the coordinates of A', the image of A, are

nekit [7.7K]

Answer:

Step-by-step explanation:

We dont know rules about rotating a point. We only know rules about rotating about the orgin.

We can translate this line segment so point c is on the orgin because

A translation is a rigid transformation
We also know rotation rules about the orgin.

Point C is at (1,3) so let move this all points 1 to the left and 3 down. Why All Points?

A translation is parallel from it original image to its second or new image so this means Point B and Point A will both move as well. Let just focus on Point A. The new coordinates are:

Point A prime is (1,0).

Let apply the 90 degree clockwise rule. Point C doesnt move since it is at the orgin and it at the center of rotation.

(x,y) goes to (y,-x).

So Point A prime is now at

(0,-1).

Now let translate the figure back to Point C (1,3). by going 1 to the right and 3 up so our new point of Point A prime is at

(1,2).

8 0

3 years ago

A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?

IrinaVladis [17]

Answer:

y = -4x+5

Step-by-step explanation:

I graphed the given equation on the graph below and graphed the choices with it. Only one choice had one solution with the given equation. This equation is y = -4x+5