Skip to content
Search Create account

Featured Answer

Featured Answer is a community of 2,593,952 amazing learners

We're a place where learners ask for help for their tasks and share their knowledge.

Create account Log in
Twitter Facebook Github Instagram

Asked on

What's the value of k that makes 3x^2+5x+k=0 have one real root?

#mathematics

Answers (1)

Collapse
eecw6fsmaa profile image
⭐ Featured Answer
•

This is a quadratic Equation. If A=3, B=5 and C=k.......the formula for quadratic equations is -b under root b^2 - 4ac over 2a. For this quadratic equation to only have 1 real value, the determinant(b^2 -4ac) has to be 0. lets put the values of A, B and C. it becomes, 5^2 - 4*3*k. this becomes, 25-12k. this has to be 0 so we get, 25-12k = 0.

-12K = 25

K = 25 divide by -12

K = 25/-12

Reference: My Brain

Similar questions

Verifying an inverse of a function help?

Graham P -

A golf ball is hit from the ground with an initial speed of 192 feet per second.?

itsmariaokay -

derivative of 1/x = -1/x^2 .how is that?explain?

Phyllis Cook -

Basic algebra problem...PLEASE HELP!?

:) -

Please HELP!! Simplify 6/ x^2 + 8x + 7 + x/x+1?

:) -

Algebra help needed!!!!!!!?

Banana Manna -

Math problem can get help?

Kingoflions -

Math help and explanation?

×†× TØñÿ ×†× -

The function H described by H(x) = 2.75x + 71.48.?

jobie8904 -

Solve the following system of equations. x + 8y = 8 and x = 2 - 8y?

jobie8904 -

How to I simplify a^2(x-6y) + b^2(6y-x) ?

Belle -

What's 25% of these numbers?

Impressive_Instant -

Factor 12a + 9ay - 4y - 3ysquared?

:) -

PLEASE HELP! basic algebra question... find length and width?

:) -

Haloween-related Algebra Problem?

Jorge -

what is the sigma notation of the taylor series of sin(x)?

yea...ok -

Solve for x ? commannn nnnnnnnn need to solve it step by step?

Kingoflions -

How is (1-4x^2) simplified........is it (1+2x)(1-2x)?

alexyz -

How do I solve e^x=20 for x?

WiiMan -

Help me with this calculus problem?

Joel Logan -