No products in the cart.

# If the quadratic equation x2 + …

## CBSE, JEE, NEET, NDA

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

If the quadratic equation x2 + 4x + k = 0 has real and equal roots, then
• 2 answers

Faisal Khan 2 months ago

Solution verified Verified by Toppr x 2 −4x+k=0 is of the form ax 2 +bx+c=0 where a=1b=−4c=k Roots are equal⇒ Discriminant=0 ⇒b 2 −4ac=0 ⇒(−4) 2 −4×1×k=0 ⇒16−4k=0 ⇒−4k=−16 ∴k= 4 16 ​ =4 Solve any question of Quadratic Equations with:-

Divya Sahu 2 months, 1 week ago

a=1,b=4,c=k d=b^2-4ac 0=4^2-4×1×k 0=16-4k -4k=-16 k=16/4=4

Related Questions

• 1 answers
• 2 answers
• 1 answers
• 4 answers
• 5 answers
• 0 answers
• 1 answers
• 1 answers
• 1 answers
• 0 answers

## myCBSEguide

Trusted by 1 Crore+ Students

#### Question Paper Creator

• Create papers in minutes
• Print with your name & Logo
• Download as PDF
• 5 Lakhs+ Questions
• Solutions Included
• Based on CBSE Syllabus
• Best fit for Schools & Tutors

## Test Generator

Create papers at ₹10/- per paper