WorksheetsQuadratic equations k
Total questions: 13
Worksheet time: 24mins
Solve the equation by factoring.
x = {-5,-3}
x = {5,-3}
x = {-5,3}
x = {5,3}
x - 12 = -x2 is an example of quadratic equation.
True
False
If one root of the equation 2x2 +ax +6 =0 is 2 then a = _______
7
-7
27
2−7
Solve the following quadratic equation...
x2 + 9x + 20 = 0
x = -2
x = -10
x = -5
x = -4
x = -1
x = -20
x = 4
x = 5
If the discriminant is __________ then roots are rational.
perfect square
perfect cube
both (1) and (2)
none of these
2. If 1/2 is a root of the equation x2 + kx – (5/4) = 0 then the value of k is
2
-2
3
-3
What are the values of a, b, and c in the quadratic equation 3x2 - 10 = -4x
a = 3x2 b = -10 c = -4x
a = 3 b = -10 c = -4
a = 3 b = -4 c = -10
a = 3 b = 4 c = -10
The difference of squares of two numbers is 88. If the larger number is 5 less than twice the smaller number, then find the two numbers.
Sum of the areas of two squares is 400 𝑐𝑚2.If the difference of their perimeters is 16 𝑐𝑚, find the sides of the two squares.
Find the roots of the following quadratic equation :2√3𝑥^2 − 5𝑥 + √3 = 0
If the sum of two natural numbers is 8 and their product is 15, find the numbers.
To get imaginary roots, Δ =
0
1
<0
>0
For what value of 𝑘 the quadratic equation 𝑥^2 − 𝑘𝑥 + 4 = 0 has equal roots?
