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Use factorization to solve the equation: 1. X ^ 2-11x + 28 = 0 2.2 √ 3Y ^ 2-y - √ 3 = 0. When x =?, the value of the algebraic formula x ^ 2-5x + 1 is equal to 15
1. X ^ 2-11x + 28 = 0 (x - 4) (X-7) = 0 x = 4 x = 7 2.2 √ 3Y ^ 2-y - √ 3 = 0 (√ 3Y + 1) (2Y - √ 3) = 0 when x = 7. - 2, the value of the algebraic formula x ^ 2-5x + 1 is equal to 15
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