What is the solution set of the inequality x5 + x4 - 6x3 + x2 + x - 6 ≥ 0?

A) [-3, -1], [-1, 2]

B) [-3, -1], [2, [infinity])

C) (-[infinity], -3] , [-1, 2]

D) (-[infinity], -3], [2, [infinity])

answer: the four apples you took away.

step-by-step explanation:

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -