Question

1. Find which of the following equations are quadratic
(ii) 5x2 - 8x = -3(7 - 2x)
(iii) (x-4) (3x + 1) = (3x - 1) (x + 2)
(iv) x2 + 5x - 5 = (x - 3)2

(vi) (x - 1) 2+ (x + 2)2 + 3(x + 1) = 0
Please friends will you able to solve this sums.
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Answer 1

Answer:

=10-8x=-21+ 2x

=31=6x

=x=31/6

Step-by-step explanation:

Answer 2

I think you need definition of quadratic equation too.

Definition: A quadratic equation is an equation of second degree,means it contain one no. having square as a power.

The quadratic equations are:

• x2 + 5x - 5 = ( x-3)2
• 5x2- 8x = -3(7-2x)

HOPE IT HELPS U....✌✌