Maths-
General
Easy

Question

Identify the value of c that makes the trinomial factorable using the perfect square pattern.
2 x squared minus 28 x plus c

hintHint:

using condition b squared minus 4 a c equals 0 in the trinomial to find c which makes the trinomial the perfect square .

The correct answer is: c = 98


    Ans :- c = 98
    Given 2 x squared minus 28 x plus c text  comparing it with  end text a x squared plus b x plus c
    Here a = 2 ;b = -28
    b squared minus 4 a c equals 0 if the trinomial is a perfect square.
    b squared equals 4 a c not stretchy rightwards double arrow left parenthesis negative 28 right parenthesis squared equals 4 left parenthesis 2 right parenthesis left parenthesis c right parenthesis not stretchy rightwards double arrow 784 equals 8 c
    c = 98
    c = 98

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