Question

if the roots of the quadratic equation 4x²+12x+c=0 are equal, then the value of c?


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Answer 1

Answer:

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

.

Answer 2

Step-by-step explanation:

4x²+12x+c=0

16x+12x=c

28x=c