A rectangular blanket for a child that measures 3 feet by 4 feet is made. A border that is exactly 6 square feet is to be created around the blanket. Which TWO equations represent the required width of the border, x?

(3+x)(4+x)=18

(3+2x)(4+2x)=18

(3+x)(4+x)−3(4)=6

(3+2x)(4+2x)=6

(3+2x)(4+2x)−3(4)=6

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

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