In the following question two equations numbered I and II are given. You have to solve both the equations and __________ Give answer
I. \( \Large x^{2} \) + x - 20 = 0
II. \( \Large y^{2} \) - y - 30 = 0
Correct Answer: Description for Correct answer:
I. \( \Large x^{2} \) + x - 20 = 0
=> \( \Large x^{2} \) + 5x - 4x + 20 = 0
=> x ( x + 5 ) - 4 ( x + 5 ) = 0
=> ( x + 5 ) ( x - 4 ) = 0
\( \Large \therefore \) x = -5 or 4
II. \( \Large y^{2} \) - y - 30 = 0
=> \( \Large y^{2} \) - 6y + 5y - 30 = 0
=> y ( y - 6 ) + 5 ( y + 5 ) = 0
=> ( y - 6 ) ( y + 5 ) = 0
\( \Large \therefore \) y = 6 or -5
Clearly, x \( \Large \leq \) y
Part of solved Linear Equations questions and answers :
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