Question

if x and y are two zeros of p of x is equal to 25 x square minus 15 + 2000 find the value of x 2 + 1 to 30 square​

Answer 1

ANSWER:-

• a=2

EXPLANATION:-

• Given that 2 and 0 are two zeroes,
• Then, x = 2 and x = 0
• Putting the value(s) one by one in the given equation,
• Taking, x = 2
• 2x³ - 5x² + ax + b = 0
• 2(2)³ - 5(2)² + a(2) + b = 0
• 2(8) - 5(4) + 2a + b = 0
• 16 - 20 + 2a + b = 0
• -4 + 2a + b = 0
• 2a + b = 4 -------1equation
• Taking, x = 0
• 2x³ - 5x² + ax + b = 0
• 2(0)³ - 5(0)² + a(0) + b = 0
• b = 0  
• Then, putting the value of b in 1equation,
• 2a + b = 4
• 2a + 0 = 4
• 2a = 4
• a=2