Find the roots of the quadratic equations given in Q.1 above by applying the quadratic formula.

Answer

Related Courses

Algebra

NCERT Class 10 - Math

Chapter 4

Quadratic Equations

Section 3

Solution of a Quadratic Equation by Factorisation

Discussion

You must be signed in to discuss.

Top Algebra Educators

Watch More Solved Questions in Chapter 4

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Video Transcript

Hello. We have told number two in this you have to find the roots of the quite a question. Using quieted formulas given in Problems. I'll give you a question # one. So according to poetic formula X. Esquire just being proceed to zero. This aquatic question by aquatic from laX becomes equal to minus me. That's minus be a Squire minds voice and the route. By the way this is the quadratic formula. Mhm. No For the number one says two extra Squires minus seven X Plus three equal to zero. If you compared with for the question will be getting equal to two People to -7. See it will be three so X will be equal to mine minus day plus minus. We inspired minds forward into two into three 22 seven plus minus. This is 49 minus 24. But for so this is seven plus minus. This will be 25. The fight back or Take negative sign. It will be too careful. one x 2. It will be caused if it's a positive sign it will be Well before that is three So x uh excess one x 2 commentary. Okay Question number two. The works as choir plus X -4 equal to zero. And actually they call to minus B that in minus one plus minus B squared- Fall into two and 2 minus four by 22 from minus one plus minus one place 32 That is 33 and to do by four. Okay so access -1 -133 x four And -1 class. Under 33 x four. Mhm 30 days four X esquire's Plus four Under 3 x That's three equal to zero. So in this case actually we put a minus b minus 403 plus minus b squared and 400 year old square Which is 48 minus 48 by two. So it will be the better jobs -4 or three x 2. Which will be put to uh you'll be with narrative sense 2 3 -2 Frequency. Mhm. And forties two X. Esquire. Let's last Oh equal to zero. No if you take uh discriminate entities, the sperm minus Foresti one minus and 32 on the road, not on the road, discriminate is not in the room minus 30 when when I start doing which is Less than zero for no solution and go.

We have video lessons for 98.48% of the questions in this textbook