All categories

3 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Mathematics

2 answers:

BabaBlast [244]3 years ago

8 0

Answer:

Step-by-step explanation:

x^2+20=2x move 2x to the left

x^2-2x+20=0

Quadratic formula =

x=1± i√19

andrezito [222]3 years ago

5 0

Answer:

It is D on ed2020

1+- $\sqrt 19 i$

Step-by-step explanation:

You might be interested in

Find the missing value so that the two points have a slope of -2 (1,y)and (6,-5)

Dahasolnce [82]

im sorry this question doesnt make sese you cant have a slope represented by points on a graph

( such as (6,-5)

6 0

3 years ago

I need help agen plz my teachers are still asking me to stay

luda_lava [24]

Answer:

y = 7x^2 + 42x + 64

Step-by-step explanation:

... i know standard form, you just distribute the exponent to the parenthesis amounts and put it in order, hope it helps

5 0

3 years ago

Read 2 more answers

Show me how to solve 10>x/2 +4

postnew [5]

Treat this as if the inequality sign was the same thing as an equal sign. Most of the equality rules apply to inequalities (with a few exceptions)

$10>\dfrac{x}{2}+4$

Subtract both sides by 4

$10-4>\dfrac{x}{2}+4-4$

$6>\dfrac{x}{2}$

Multiply both sides by 2

$2\times6>\dfrac{x}{2}\times2$

$12>x$

We want the unknown variable on the left side (because it looks nicer)

$x$

5 0

3 years ago

Read 2 more answers

Rewrite f(x) = –(x + 3)2 − 1 from vertex form to standard form.

Verizon [17]

$f(x)=-(x+3)^{2}-1=-x^{2}-6x-9-1=-x^{2}-6x-10$

3 0

3 years ago

Read 2 more answers

What does x/4=3/2 equal?

MrRissso [65]

x/4 = 3/2
x/2 = 3 (multiply both sides by 2)
x = 6 (multiply both sides by 2)
Therefore 6/4 = 3/2

6 0

3 years ago