Question

find all the zeros of 3x^(4)+6x^(3)-2x^(2)-10x-5 if two zeroes are -1 and sqrt((5)/(3))​

Answer 1

Answer:

p(-1) = 0,p(5/3) = 23.703

Step-by-step explanation:

Given,

3x⁴+6x³-2x²-10x-5

Now consider,

p(-1) = 3(-1)⁴+6(-1)³-2(-1)²-10(-1)-5

= 3(1)+6(-1)-2(1)-10(-1)-5

= 3-6-2+10-5

= -5+5

:.p(-1) = 0

Now consider,

p(5/3) = 3(5/3)⁴+6(5/3)³-2(5/3)²-10(5/3)-5

= 3(625/81)+6(125/27)-2(25/9)-10(5/3)-5

= (1875/81)+(750/27)-(50/9)-(50/3)-5

= 1875+2250-450-1350-405/81

= 1920/81

:. p(5/3) = 23.703.

I hope it helps you.

Answer 2

Answer:

hope it helps you this answer in image...