Question

Find the derivative of y=
7x4 + 2x3 + 4x2 - 6x + 100​

Answer 1

Answer:

= 12x3 ¡ 8x2 + 7x + 5

dy

dx = 12(3x3¡1) ¡ 8(2x2¡1)+7x1¡1 + 0

= 36x2 ¡ 16x + 7

Step-by-step explanation:

Answer 2

24

Step-by-step explanation:

multiply all and put equal to 0

28+6+8-6x+100 = 0

now,

144-6x = 0

-6x = 0-144

-6x = -144

x = -144/-6

x = 24