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find the product of (3x − 7y)2. (2 points)

9x2 − 42xy + 49y2

9x2 + 42xy + 49y2

9x2 − 49y2

9x2 + 49y2

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which expression converts 45 degree to radians