Solve for x write the smaller solution first and the greater second x^2+7=43

Landon wrote that 3−2.6=4. which statement about his answer is true?

The anwser cause i do not understand just plez

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.