Question

Q1. Is 16x2-3 = (2x+5) (5x-3), a quadratic equation or not?
Q2. Find whether the line representing the following pair of linear equations intersect at a point,
are parallel or coincident: 2x-3y+6 = 0; 4x-5y+2 = 0.
Q3. For what value of k, the pair of linear equations 3x+y=3 and 6x+ky=8 does not have a solution.
Q4. Graphically, the pair of equations 6x-3y+10 = 0; 2x-y+9 = 0, represents two lines which are:
A) Intersecting at exactly one point. B) Intersecting at exactly two points.
C) Coincident.
D) Parallel
Q5. Equation (x+1)2-x2 = 0 has
A) 1
C) 3
real root(s).
B) 2
D) 4​

Answer 1

Answer:

1) yes it is a Quadratic equation

2) one solution

3) 2

Step-by-step explanation:

1) 16*2-3=(2x+5) (5x-3)

29= 10x²-6x+25x-15

= 10x²+19x+14=0

hence it is a Quadratic equation.

2) the equation represents

a1/a2 not equal to b1/b2 not equal to c1/c2

it too lendy to solve all the questions at once in the phone... kindly ask saperately