Question

3 Select the correct answer. 52 + 51 + 6 For the rational equation, 1 + 3 = 1 what is a valid value of x? ОА. B. -1 O C. 2 O D. 3 Reset Next​

Answer 1

9514 1404 393

Answer:

B. -1

Explanation:

`(x^2 +5x +6)/(x+3)=1\qquad\text{given}\\\\((x+2)(x+3))/(x+3)=1\qquad\text{factor}\\\\x+2=1\qquad x\\e-3\qquad\text{cancel factors}\\\\x=-1\qquad\text{add $-2$}`

The only valid value of x is -1.