EXERCISE - 5.1
Check whether the following are quadratic equations :
i. (x + 1)2 = 2(x – 3)
ii. x² – 2x = (-2) (3 – x)
Answers
Answered by
9
Answer:
given equation is quadratic equation.
my answer is correct.
so please mark as brainliest
Answered by
17
Given:
- (x + 1)² = 2(x – 3)
Solution:
By using the formula for (a+b)² = a²+2ab+b²
⇒ x² + 2x + 1 = 2x – 6
⇒ x² + 7 = 0
Since the above equation is in the form of ax² + bx + c = 0.
Therefore, the given equation is quadratic equation.
Given:
x² – 2x = (–2) (3 – x)
By using the formula for (a+b)² = a²+2ab+b²
⇒ x² – 2x = -6 + 2x
⇒ x² – 4x + 6 = 0
Since the above equation is in the form of ax² + bx + c = 0.
Therefore, the given equation is quadratic equation.
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