What is (x-5)^2

Separate the square: (x-5)2 = (x-5)(x-5)multiply the variables: x2multiply the numbers: -5 x -5 = 25multiply a variable and a number: -5xtimes this value by two: -10xsum all answers: x2- 10x + 25

Answered by Matthew B. Maths tutor

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