In the question, two equations I and II are given. You have to solve both the equations and give answer x2-11x+28=0y2-18y+81=0

Q: In the question, two equations I and II are given. You have to solve both the equations and give answer x2-11x+28=0y2-18y+81=0

x2 – 11x + 28=0 x2 – 7x – 4x + 28=0 x (x-7) – 4 (x-7)=0 (x-4) (x-7)=0 x=4, 7 y2 – 18y + 81=0 y2 –9y – 9y + 81=0 y (y-9) – 9 (y-9)=0 (y-9) (y-9)=0 y=9, 9 So, x<y.

x > y
x < y
x=y, or relation cannot be established between x and y
x ≥ y

Correct Answer: x < y

Explanation:

x2 – 11x + 28=0

x2 – 7x – 4x + 28=0

x (x-7) – 4 (x-7)=0

(x-4) (x-7)=0 x=4, 7

y2 – 18y + 81=0

y2 –9y – 9y + 81=0

y (y-9) – 9 (y-9)=0

(y-9) (y-9)=0 y=9, 9

So, x<y.

← Previous Question Next Question→

More Questions from Simplification

What should come in place of question mark (?) in the following question? 115 ÷ 5 + 12 × 6 = ? + 64 ÷ 4 - 35
What should come in place of question mark (?) in the following question? 1234 + 2345 – 3456 + 4567 = ?
What is the y – intercept of the linear equation 59x + 14y – 112 = 0?
What is the value of (sin60° + 2/√3) ?
Solve the following equation to find x: (x − 2)2 − 36 = 0 : xεN
The zeros of the cubic polynomial 2x3-x2-2x+1 are a, b and c respectively. Find a+b+c :
The two roots of a quadratic equation are given as x = 1/7 and x = -1/8 . The equation can be written as:
Reflection of the point (2,7) in the yaxis is
6.651 - (148.6 - x ) - 57.22 = 6.098. Find x.
If one more cobbler is hired the output of a shoe making unit will increase from 50 pairs of shoes to 55 pairs per day, but then the shoe making unit will have to reduce the price of a pair of shoes from Rs 3200 to Rs 3000 per pair to sell the additional output, the marginal revenue product of the last cobbler is

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion