Question
I. x2 – 10x + 21 = 0 II.
y2 + 11y + 28 = 0 In each of the following questions, there are two equations. You have to solve both equations and mark the correct answer.Solution
I. x2 – 10x + 21 =0 => x2 - 7x - 3x + 21 = 0 => x(x - 7) - 3(x - 7) = 0 => (x - 7) (x - 3) = 0 => x = 7, 3 II. y2 + 11y + 28 =0 => y2 + 7y + 4y + 28 = 0 => y(y + 7) + 4(y + 7) = 0 => (y + 7) (y + 4) = 0 => y = -7, -4 Hence, x > y.
Which of the following is known as Horn of Africa?
The founder of ________ Areez Pirojshaw Khambatta has passed away recently at the age of 85 years who was suffering from prolonged illness.
A book “Listen to Your Heart: The London Adventure” is written by?
"Nua Khai - a harvest festival" is mainly celebrated in which state in India?
Who is the author of the book "The Pursuit of Reputation: Unlocking the Power of Public Relations"?
Who is the only female cricketer to surpass the 7,000 run mark in Women's One Day International Matches?
Match List-I with List-II and select the correct answer using the given below the Lists :
Who was the founder of the city of Agra?
Which state/ ut has launched the app ‘Talaash’ to know the position of children not going to schools?
Which Russian bank has become the first Russian bank to to register with the SEBI as a foreign portfolio investor (FPI) according to the information...
Relevant for Exams:
