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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

let take the equation x² + 6x - 7 = 0 first step transfer the # 7 to the right side so we x² + 6x = 7 then divide six by 2 and squared it that is (6/2)² = 9 now we have x² + 6x + 9 = 7+ 9 / since we added 9 to the left we must also add 9 to the right side complete the square (x+3)² =16 x + 3 = + or - √16 = 4 or - 4 x = 4-3 = 1 or -4 -3 = -7