Saved Bookmarks
| 1. |
2x - 152 +54 FoSolve by factorisation |
|
Answer» x=9,6 and its factors are(x-9) and (x-6) x^2-15x+54=0x^2-8x-7x+54=0x(x-8)-7(x-8)=0(x-8) (x-7) factors = (x-6) and (x-9) so X= 6,9 X^2-9x-6x+54=0X(x-9)-6(x-9)=0(x-6)(x-9)=0x-6=0 or x-9=0X=6 or X=9 This is right questions = x²–15x+50 = 0 = x²–10x+5x–50 = 0 = x(x–10)+5(x–10) = 0 = (x–10)(x+5) = 0 = x = +10 , x = – 5 .....ans. |
|