Q. 5. Write the discriminant of the quadratic equation.
(x+5)²= 2(5x-3)
Answers
Answered by
3
Step-by-step explanation:
(x+5)²=2(5x-3)
x²+25+10x=10x-6
x²+25+6=0
x²+31=0
Here a=1, b=0, c=31
D = b²-4ac
0²-4×1×31
= -124 is the correct answer
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Answered by
1
(x+5)²= 2(5x-3)
x² + 5² + 2(x)(5) = 10x - 6
x² + 25 + 10x = 10x - 6
x² + 25 + 10x - 10x = -6
x² + 25 = -6
x² + 25 + 6 = 0
x² + 31 = 0
x² + 0x + 31 = 0
a = 1
b = 0
c = 31
D = b² - 4ac
D = (0)² - 4(1)(31)
D = - 124
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