(Solved): 7-   Use synthetic division to show that 5 is a solution of the equation shown below. Then sol ...

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Use synthetic division to show that 5 is a solution of the equation shown below. Then solve the polynomial equation. Hint: Use factoring by grouping when working with the quotient factor. x²-3x³-19x² +27x + 90 = 0 The quotient is division, x4 - 3x³ - 19x² +27x+90 divided by x-5, is and the remainder is Therefore, the number 5 is a solution because the of the