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(1)State whether the following quadratic equation have two distinct real roots. Justify your answer.(i) x2−3x+4=0(2)State whether the following quadratic equation have two distinct real roots. Justify your answer.(ii) 2x2+x−1=0(3)State whether the following quadratic equation have two distinct real roots. Justify your answer.(iii) 2x2−6x+92=0(4)State whether the following quadratic equation have two distinct real roots. Justify your answer.(iv) 3x2−4x+1=0(5)State whether the following quadratic equation have two distinct real roots. Justify your answer.(v) (x+4)2−8x=0(6)State whether the following quadratic equation have two distinct real roots. Justify your answer.(vi) (x−√2)2−2(x+1)=0(7)State whether the following quadratic equation have two distinct real roots. Justify your answer.(vii) √2x2−3√2x+1√2=0(8)State whether the following quadratic equation have two distinct real roots. Justify your answer.(viii) x(1−x)−2=0(9)State whether the following quadratic equation have two distinct real roots. Justify your answer(ix) (x−1)(x+2)+2=0(10)State whether the following quadratic equation have two distinct real roots. Justify your answer.(x) (x+1)(x−2)+x=0 |
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Answer» (1) State whether the following quadratic equation have two distinct real roots. Justify your answer. (i) x2−3x+4=0 (2) State whether the following quadratic equation have two distinct real roots. Justify your answer. (ii) 2x2+x−1=0 (3) State whether the following quadratic equation have two distinct real roots. Justify your answer. (iii) 2x2−6x+92=0 (4) State whether the following quadratic equation have two distinct real roots. Justify your answer. (iv) 3x2−4x+1=0 (5) State whether the following quadratic equation have two distinct real roots. Justify your answer. (v) (x+4)2−8x=0 (6) State whether the following quadratic equation have two distinct real roots. Justify your answer. (vi) (x−√2)2−2(x+1)=0 (7) State whether the following quadratic equation have two distinct real roots. Justify your answer. (vii) √2x2−3√2x+1√2=0 (8) State whether the following quadratic equation have two distinct real roots. Justify your answer. (viii) x(1−x)−2=0 (9) State whether the following quadratic equation have two distinct real roots. Justify your answer (ix) (x−1)(x+2)+2=0 (10) State whether the following quadratic equation have two distinct real roots. Justify your answer. (x) (x+1)(x−2)+x=0 |
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