Question

33. Check whether the following are Quadratic equations or not
i) (x-2)² + 3 =2x-1 ii) x(x-1) = (x+2)(x-3)
iii) x (2x+3) = x² +1 iv) (x+2) = x³-4​

Answer 1

Answer:

Question 1 Check whether the following are quadratic equations:

(i) (x+1)^2 = 2(x-3)

(ii) x^2 - 2x = (-2)(3-x)

(iii) (x-2)(x+1) = (x-1)(x+3)

(iv) (x-3)(2x+1) = x(x+5)

(v) (2x-1)(x-3) = (x+5)(x-1)

(vi) x^2 + 3x + 1 = (x-2)^2

(vii) (x+2)^3 = 2x(x^2 - 1)

(viii) x^3 - 4x^2 - x + 1 = (x-2)^3

Class 10 - Math - Quadratic Equations Page 73

Answer 2

Answer:

y , n , y ,n

Step-by-step explanation:

i) (x-2)² + 3 =2x-1     : yes   : highest power of x is 2

ii) x(x-1) = (x+2)(x-3)   : NO highest power of x is 1

iii) x (2x+3) = x² +1    YES   NO highest power of x is 1 in final form of equation

iv) (x+2) = x³-4​          NO   highest power of x is 3   in final form of equation