1) Solve quadratic equations using the method of perfecting squares and formulas  a) x = −5.317 ,x = 1.317 b) x = −5.32 ,x = 1.32 c) x = 5.317 ,x = 1.317 2) Solve quadratic equations using the method of perfecting squares and formulas a) x = -1.099 ,x = −9.099 b) x = 1.1 ,x = 9.099 c) x = 1.099 ,x = −9.099 3) Solve the quadratic inequalities a) x = 5 ,x = -2 b) x = -5,x = 2 c) x =-2 ,x = 5 4) Solve the quadratic inequalities a) x = −8, x = 6 b) x = 6, x = 8 c) x = 8 ,x = 6 5) Solve quadratic equations using the method of perfecting squares and formulas a) X=0.4833,x =−1.483 b) X=0.4833,x =−14.483 c) X=4833,x =−14.483 6) Solve the quadratic inequalities a) x = 3 x = -2 b) x = -2 x = 4 c) x = -2 x = 3 7) Solve the quadratic inequalities a) x = 3 x = 2 b) x = -8 x = -7 c) x = -9 x = 6 8) Solve quadratic equations using the method of perfecting squares and formulas a) x = 8.690 x = 0.690 b) x = 8.650 x = 0.612 c) x = 7.809 x = 0.367 9) Solve quadratic equations using the method of perfecting squares and formulas a) x = 3.213 x = 2.432 b) x = 4.675 x = 1.324 c) x = 3.236 x = 1.236 10) Solve the following quadratic equations by factorisation a) x = 2 x = 3 b) x = 3 x = 2 c) x = 2 x = 2 11) Solve X2 + 9x - 4 = 0 using the method of perfecting squares and formulas.   a) x = 0.424 or x = -9.424 b) x = 0.212 or x = 0.342 c) x = 0.232 or x = 8.223 12) If a and B are the roots of the quadratic equation 2x 2 + x = 4, form a quadratic equation with ( + 3, B + 3) a) 2x 2 -14x + 11 = 0 b) 2x 2 - 11x + 11 =0 c) 2x 2 +11x - 11 = 0 13) Solve X 2 + 4x - 3 = 0 using the method of perfecting squares and formulas a) x=0.646 or x=−4.646 b) x= 0.232 or x= 0.332 c) x= -3.023 or x= 0.123 14) Solve X 2 + 5x - 25 = 0 using the method of perfecting squares and formulas a) x=2.293 or -4.283 b) x= 5.293 or -8.283 c) x=3.09017 or x=−8.09017 15) solve the following quadratic equations by factorisation. a) x = -6 or x = 1 b) x= 1 or x= 4 c) x= -1 or x=6 16) solve the following quadratic equations by factorisation. a) x=1 or x = -2/3 b) x= -3/2 or x=1 c) x = 3/2 or x=1 17) solve the following quadratic equations by factorisation. a) a= 3/2 or a=4 b) a=2/3 or a =2 c) a= 4 or a= 2/3 18) If the roots of 2x2 + 4x - 1 = 0 are a and B, find the equations whose roots are a) 4x^2 - 20x + 1 = 0 b) 8x^2 -10x - 1 =0 c) 4x + 10x^2 + 1 = 0 19) If the roots of 2x2 + 4x - 1 = 0 are a and B, find the equations whose roots are   a) x^2 - 6 = 0 b) x + 6 = 0 c) x^2 + 6 = 0

PBL ADDMATH

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