Q. A quadratic equation is....... An equation with 1 solution An equation with 2 solutions An equation with 0 solutions An equation with 3 solutions.

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Presentation transcript:

Q. A quadratic equation is An equation with 1 solution An equation with 2 solutions An equation with 0 solutions An equation with 3 solutions

Q. Pick the quadratic equation y=x+2 y=2x y=x 2 +5 y=x 3

Q. Pick the quadratic equation Red Pink Blue Green

Q. Pick the quadratic equation Red Pink Blue Green

Q. Solve (x-8)(x-5)=0 x = -8 and -5 x = 8 and -5 x = -8 and 5 x = 8 and 5

Q. Solve (x+4)(x-1)=0 x = -4 and -1 x = 4 and 1 x = 4 and -1 x = -4 and 1

Q. Solve (2x+4)(x-3)=0 x = 2 and -3 x = 4 and 3 x = -2 and 3 x = -2 and -3

Q. What are the solutions? x = 3 & -2 x = -6 x = 0 x = 2 & -3

Q. What are the solutions? x = 12 x = -4 & 3 x = 0 x = 4 & -3

Q. What are the solution(s)? x = 0 x = 6 x = 2 & 3 x = 2 & -3

Q. Factorise x 2 +5x+6 (x+2)(x+3) (x+5)(x+6) (x-5)(x+6) (x-2)(x-3)

Q. Factorise x 2 -3x-10 (x+3)(x-10) (x+5)(x-2) (x+5)(x+2) (x-5)(x-2)

Q. Factorise 2x 2 +7x-9 (2x-9)(x-1) (x+7)(x-9) (2x+9)(x-1) (x+9)(2x-1)

Q. Factorise x (x-16)(x-1) (x+16)(x+1) (x-16)(x+1) (x+4)(x-4)

y=(x+1)(x-2) y=(x-1)(x+2) y=(x-1)(x-2) y=x 2 Q. What is the equation?

y=x-2 y=(x+4)(x-2) y=(x+2)(x+2) y=(x-2)(x-2)

Q. What is the equation? y=(x-9)(x+3) y=(x-3)(x+3) y=(x-3)(x-3) y=(x+5)(x-7)

Q. What is the equation? y=x-4 y=x 2 +3x-4 y=x 2 +3x+4 y=x 2 -3x-4

Q. Complete the square for x 2 -10x (x+5) 2 -5 (x-5) 2 -5 (x-5) (x+5) 2 -25

Q. Complete the square for x 2 +12x (x+6) (x-6) (x+12) (x+6)

Q. Complete the square for x 2 -6x+3 (x+3) 2 -9 (x-3) 2 -9 (x-3) 2 -3 (x-3) 2 -6

Q. Complete the square for x 2 +4x-5 (x+2) 2 -5 (x+2) 2 -9 (x-2) 2 -9 (x+4) 2 -5

Q. Complete the square for 2x 2 +12x 2(x+12) 2 2(x+6) (x+3) (x+3) 2 -18

Q. Complete the square for 3x 2 -12x-27 3(x-12) (x-4) (x-2) (x-4) 2 -9

Q. The quadratic formula for ax 2 +bx+c is... A B C D