subject
Mathematics, 18.12.2020 01:00 robertotugalanp1wlgs

PLEASE HELP BRAINLIEST IF CORRECT Some of the steps in the derivation of the quadratic formula are shown.

Step 4: StartFraction negative 4 a c + b squared Over 4 a EndFraction = a ( x + StartFraction b Over 2 a EndFraction) squared

Step 5: (StartFraction 1 Over a EndFraction) StartFraction b squared minus 4 a c Over 4 a EndFraction = (StartFraction 1 Over a EndFraction) a (x + StartFraction b Over 2 a EndFraction) squared

Step 6: StartFraction b squared minus 4 a c Over 4 a squared EndFraction = ( x + StartFraction b Over 2 a EndFraction) squared

Step 7: StartFraction plus or minus StartRoot b squared minus 4 a c EndRoot Over 2 a EndFraction = x + StartFraction b Over 2 a EndFraction

Which best explains why the expression plus or minus StartRoot b squared minus 4 a c EndRoot cannot be rewritten as b plus or minus StartRoot negative 4 a c EndRoot during the next step?

A: Negative values, like −4ac, do not have a square root.

B: The ± symbol prevents the square root from being evaluated.

C: The square root of terms separated by addition and subtraction cannot be calculated individually.

D: The entire term b2 − 4ac must be divided by 2a before its square root can be determined.

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, Maria3737
An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.
Answers: 2
image
Mathematics, 21.06.2019 22:00, kimjooin02
[tex]5 \times1 \frac{12}{13} [/tex] me
Answers: 1
image
Mathematics, 22.06.2019 00:30, lolagrace06
Me i’m stuck on all these questions besides the two bottom ones
Answers: 2
image
Mathematics, 22.06.2019 01:00, kam110800
1) your friend taylor missed class today and needs some identifying solutions of systems. explain to taylor where to find the solution(s) of any system using its graph 2)taylor graphs the following in desmos and decides that f(x) = g(x) at x = 0, x = 1, & x = 3. f(x) = 2x+1g(x) = 2x2+1 provide taylor some feedback that explains which part of the answer was incorrect and why.
Answers: 1
You know the right answer?
PLEASE HELP BRAINLIEST IF CORRECT Some of the steps in the derivation of the quadratic formula are...

Questions in other subjects: