Question

Please solve this equation only Q.1
i will brainly mark and i want step by step explanation

Answer 1

Answer:

Q1 (a) x^3 cancels out and the equation reduces to x^2 + 5x - 7 = 0 so it is a quadratic equation as the highest power of x is 2.

(b) x/7 + x = 0 can be reduced to x + 7x = 0

or 8x = 0 so as the highest power of x is not 2, it is not a quadratic equation

(c) 1/x + x = 5 can be reduced to 1 + x^2 = 5x

= x^2 - 5x + 1 = 0 as highest power of x is 2, it is a quadratic equation

(d) (m^2 - 4m + 7)/m = 2 can be reduced to

m^2 - 4m + 7 = 2m

= m^2 - 6m + 7 = 0 as power of variable m is 2, it is a quadratic equation