1. Solve : 3p² +2 root5p-5=0
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Solution Compare 3p2 + 2√5p – 5 = 0 with the Standard form ax2 + bx +c = 0
a = 3, b = 2√5, c = −5 .
p = (−b ± √[b2 − 4ac]) / 2a
substituting the values of a, b and c in the formula we get,
x = √5/3 , - √5
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your answer is written in two methods in above pictures.
- factorisation method
- formula method
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