Question

5. Write the discriminant of the quadratic equation.
(x+5)2 = 2(5x-3)
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Answer 1

Step-by-step explanation:

$(x + 5)2 = 2(5x - 3) \\ 2x + 10 = 10x - 6 \\ 10x - 2x = 16 \\ 8x = 16 \\ x = 2$

therefore x = 2

Answer 2

Answer:

Given the quadratic equation is (x+5)2=2(5x-3)

=x2 + 25 + 10x = 10x-6

=x2 + 31 = 0

=X2 + 0x + 31 = 0

so, the discriminant will be

D = b2 -4ac

= o2 - 4x 1 × 31 = -124