Solve the following quadratic equations by factorisation.(1) x2 – 15x + 54 = 0(2) x2 + x – 20 = 0(3) 2y2 + 27y + 13 = 0(4) 5m2 = 22m + 15(5) 2x2 – 2x + 12 = 0(6) 6x-2x=1(7) 2x2+7x+52=0to solve this quadratic equation by factorisation, complete the following activity.(8) 3x2-26x+2=0(9) 2mm-24=50(10) 25m2=9(11) 7m2=21m(12) m2-11=0

Solve the following quadratic equations by factorisation.(1) x2 – 15

1.	Solve the following quadratic equations by factorisation.(1) x2 – 15x + 54 = 0(2) x2 + x – 20 = 0(3) 2y2 + 27y + 13 = 0(4) 5m2 = 22m + 15(5) 2x2 – 2x + 12 = 0(6) 6x-2x=1(7) 2x2+7x+52=0to solve this quadratic equation by factorisation, complete the following activity.(8) 3x2-26x+2=0(9) 2mm-24=50(10) 25m2=9(11) 7m2=21m(12) m2-11=0
Answer» Solve the following quadratic equations by factorisation. (1) x² – 15x + 54 = 0 (2) x² + x – 20 = 0 (3) 2y² + 27y + 13 = 0 (4) 5m² = 22m + 15 (5) 2x² – 2x + $\frac{1}{2}$ = 0 (6) $6 x - \frac{2}{x} = 1$ (7) $\sqrt{2} x^{2} + 7 x + 5 \sqrt{2} = 0$ to solve this quadratic equation by factorisation, complete the following activity. (8) $3 x^{2} - 2 \sqrt{6} x + 2 = 0$ (9) $2 m (m - 24) = 50$ (10) $25 m^{2} = 9$ (11) $7 m^{2} = 21 m$ (12) $m^{2} - 11 = 0$