• 2021 December(E23) Math Question 14

    Quadratic Equations

    - Factoring

    Quadratic equations, Roots of Quadratic Equation
    Choice J
    x2−4x−45=0x^2-4x-45=0

    and we have to find the sum of roots. As we know that

    Sum  of  roots=−{b}{a}Sum\; of\; roots=-\frac\{b\}\{a\} ∴Sum  of  roots=−{(−4)}{1}=4\therefore Sum\; of\; roots=-\frac\{(-4)\}\{1\}=4

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