Which two values of x are roots of the polynomial below? 2 + 5x+11 O A. x = -5--19 2 B. X= 5-69 O C. x = -5-v-19 2 O D. x = 1.5 + √17 2 O E. x = 5-v17 2 O F. x = F. x - 5+159 SUBMIT E PREVIOUS​

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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 -

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step-by-step explanation: