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How to solve x(x+1) + 8 =( x +2) ( x-2) |
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Answer» x = -12 Ragionsibww992buw udvdhdheub. Hdbh. Dhbsj. Jd jd. Djd. Dduc j. Ji j I I I I ii I I ii I I j h gg g g j n jn j j I I j j j j j in j h u gf u h e e. E e e. S d d f y. T r d. D d d. D r t. T 4 w.e 5 2. 1 d. T d d e. W q. Q 1 1 e. E. 1 1. E e 2 w. 2 e e. E t 3. R y Raha. G g. Good 6. D f f 4. D d. T y t. G 6 f. F f f 5. F f g g g. 6. F t. 7 g t t y 8. T t t 8. O k 9 j jj j 0 k 0j j k jj1 j jj jjn SOLUTIONx²+1+8=x²-2²x²+1+8=x²-4x²+1+8- x² +4=0=13 Just do simple multiplication on both sides x² + x + 8 = x² - 2²Using identity a² - b² = (a+b) (a-b) X+ 12 = 0 |
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