The sum of a number and its square is 30. The number is _____.
6
5
-5
7
Graph of a linear equation is ___________.
Straight line
Parabola
Hyperbola
Circle
The discriminant of the quadratic equation ax2 + bx + c is ________.
b2 + 4ac
b2 - 4ac
4ac
2b - 4ac
The roots of the quadratic equation 2x2 + 7x + 3 = 0 is _______.
-3, -1/2
3, 1/2
-3, 1/2
3, -1/2
If p and q are the roots of x2 + 8x + 15 = 0. Then the value of p2 + q2 is ___________.
64
30
34
48
The standard form of homogenous expression of first degree in two variables x and y is _________.
ax + by
x2 + y2
xy
x2y + y2x
The middle term of the expansion of ( x/y + y/x )8 is ____________.
8c3
8c4
8c5
8c6
Graph of a quadratic equation is ___________.
The product of the roots of the equation x2 - 4x + 7 = 0 is __________.
4
If α, β are the roots of a quadratic equation ax2 + bx + c, then α + β is ________.
a
a/b
-b/a
c/a
