RD Sharma Class 10 Solutions Chapter 08 Quadratic Equations
RD Sharma Class 10 Solutions Quadratic Equations Exercise 8.1
Which of the following are quadratic equations ?
In each of the following, determine whether the given values are solutions of the given equation or not :
In each of the following, find the value of k for which the given value is a solution of the given equation.
Determine, if 3 is a root of the equation given below :
If x = and x = -3 are the roots of the equation ax2 + 7x + b = 0, find the values of a and b.
RD Sharma Class 10 Solutions Chapter 08 Quadratic Equations Ex 8.3
Q1 Q2 Q3 Q4 Q5 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 Q33 Q34 Q35 Q36 Q37 Q38 Q39 Q40 Q41 Q42 Q43 Q44 Q45 Q46 Q47 Q48
A polynomial of degree 2 is called a quadratic polynomial. The general form of a quadratic polynomial is ax2+bx+c, where a, b, c are real numbers such that a is not equal to 0 and x is a real variable.
If p(x)= ax2+bx+c, and a ≠ 0 is a quadratic polynomial and α is a real number, then p(α)=aα2+bα+c is known as the value of the quadratic polynomial p(x)
A real number α is said to be a zero of quadratic polynomial p(x) = ax2+bx+c, if p(α) =0.
If p(x) = ax2+bx+c is a quadratic polynomial, then p(x) = 0 i.e., ax2+bx+c =0, a ≠ 0 is called a quadratic polynomial.
A real number α is said to be a root of the quadratic equation ax2+bx+c=0, if aα2+bα+c=0.
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