x² - X-42 please solve this question
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Question =》x²-x-42
Solution =》x²-x-42
x²-(7-6)x-42
x²-7x+6x-42
x(x-7)+6(x-7)
(x-7)(x+6)
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2
Step-by-step explanation:
x^2-x-42= 0
Factors of 42 which bring difference as -1 are -7 and 6
x^2-7x+6x-42=0
x(x-7)+6(x-7)= 0
(x-7)(x+6)= 0
(x-7)= 0 or (x+6)= 0
x= 7. and. x= -6
Therefore, the factors of the given quadratic equation are 7 and -6.
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