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svet-max [94.6K]
3 years ago
12

WHAT IS X^2+3X-10=0 IN SIMPLEST RADICAL FORM

Mathematics
1 answer:
AleksandrR [38]3 years ago
7 0
                  x² + 3x - 10 = 0
                                  x = -(3) ± √((3)² - 4(1)(-10))
                                                      2(1)
                                  x = -3 ± √(9 + 40)
                                                 2
                                  x = -3 ± √(49)
                                               2
                                  x = -3 ± 7
                                            2
                                  x = -3 + 7    U    x = -3 - 7
                                            2                       2
                                  x = 4    U    x = -10
                                        2                   2
                                  x = 2    U    x = -5

Solution Set: {2, -5}
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