1) Determine the roots of the following quadratic equation by factorisation method a) x=3,x=4 b) x=-3,x=-4 c) x=3,x=-4 2) Determine the roots of the following quadratic equation by factorisation method a) x=9 x=1 b) x=-9 x=-1 c) x=1x=9 d) x=9 x=-1 3) Determine the roots of the following quadratic equation by factorisation method a) x = 1,x = -8 b) x = -1,x = -8 c) x = 1,x = 8 d) x = 8,x = 1 4) Determine the roots of the following quadratic equation by factorisation method a) x=−1 x=−4 b) x=1 x=4 c) x=−4 x=−1 d) x=1 x=−4 5) Determine the roots of the following quadratic equation by factorisation method a) x=9,x=1 b) x=-9,x=1 c) x=-9,x=-1 d) x=1-x=9 6) Determine the roots of the following quadratic equation by factorisation method. X 2 + 7x - 8 = 0 a) x=1 x= -8 b) x=3 x=-5 c) x=-1 x=4 7) Determine the roots of the following quadratic equation by factorisation method. X 2 + 2x - 3 = 0 a) x =1 or x = -3 b) x=8 or x=3 c) x=3 x=1 8) Determine the roots of the following quadratic equation by factorisation method.  a) X = 1/2 or x = -4 b)  x=2 or x=5 c) x=8 or x=3 9) Determine the roots of the following quadratic equation by factorisation method  a) x = -3 or x = 2/3 b) x = -4 or x = 3/2   c) x = -1 or x = 2/3 10) X 2 - 10x + 9 = 0  a) x = 1 x = 9 b) x = 10 x = 2 c) x = 9 x = 1 11) X 2 - 2x = 0 a) x = 1 x = 2 b) x = 0 x = 2 c) x = 2 x = 0 12) X 2 - 8x + 9 = 0 a) x = -1 x = 9 b) x = 10 x = 1 c) x = 9 x = -1 13) Determine the roots of the following quadratic equation by factorisation method a) x = -5 or x = 3 b) x = -2 or x = 0 c) x = -2 or x = 1 14) Determine the roots of the following quadratic equation by factorisation method a) x= 1 b) x = 10  c) x= 3 15) Determine the roots of the following quadratic equation by factorisation method a) x = 1 or x = 14 b) x = 3 or x = 4 c) x = 0 or x = 14 16) Determine the roots of the following quadratic equation by factorisation method a) x=14 b) x=12 c) x=10 d) x=11 e) x=13 f) x=15 17)  Determine the roots of the following quadratic equation by factorisation method ( 5x^2 - 2x - 10 = 0 ) a) x1= 1.628285686 x2= 1.228285686 b) x1=3 x2= 1   c) x1 = 1.654535956 x2=1.448672554 d) x1 = 2 x2=4 18) Determine the roots of the following quadratic equation by factorisation method ( 19x^2 - 9x + 15 =0 ) a) x1= 0.596478946 x2= 0.893756435 b) x1= 0.236842105 x2= 0.236842105 c) x1= -0.8945679 x2= -0.834673967884 19) Determine the roots of the following quadratic equation by factorisation method ( -46x^2 + 29 - 13x = 0 ) a) x1= 1.857690 x2=0.3765389753 b) x1= 0.89349856 x2= -0.274653593 c) x1= -0.947779208 x2= 0.665170513 20) Determine the roots of the following quadratic equation by factorisation method  ( -x^2 - 19 + 31x = 0 ) a) x1 = -20.51135777 X2 = 1.511357773 b) x1= 0.2874593 x2= -20.7845689 c) x1= 1.7835963 x2= -21.87254954

PBL MATHEMATICS

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