Mathematics, 07.09.2021 20:30 fatherbamboo
Woo Jin is solving the following equation for x xx. 7 − 4 x = x + 3 7−4x= x+3 7, minus, 4, x, equals, square root of, x, plus, 3, end square root His first few steps are given below. ( 7 − 4 x ) 2 = ( x + 3 ) 2 49 − 56 x + 16 x 2 = x + 3 (7−4x) 2 49−56x+16x 2 =( x+3 ) 2 =x+3 Is it necessary for Woo Jin to check his answers for extraneous solutions?
Answers: 1
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Woo Jin is solving the following equation for x xx. 7 − 4 x = x + 3 7−4x= x+3 7, minus, 4, x, equa...
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