Solve the inequality 2 - x > x2.
...Solve the inequality 2 - x > x2.
x < -2 or x > 1
x > 2 or x< -1
-1 < x < 2
-2 < x < 1
Correct answer is D
2 - x > x2
2 - x - x2 > 0
(x+2)(x-1) < 0
Either (x + 2) > 0 and (x - 1) < 0.
x + 2 > 0 ⟹ x > -2.
-2 < x < 1
Given that x2 + y2 + k = 60 and x = √10 when y = 4, find the value of k....
Find the values of y which satisfy the simultaneous equations x + y = 5, x2 - 2y2 = 1 ...
If 23x + 101x = 130x, find the value of x...
Make R the subject of the formula if T = KR2+M3...
Find a positive value of α if the coordinate of the centre of a circle x2 + y\(^2...
If sin 30° = 0.5, what is the cosine of its complement?...
Evaluate ut - 12ft2 when t = 5, u = -20 and f = 10...
Find the remainder when 3x3 + 5x2 - 11x + 4 is divided by x + 3 ...