Expand It!
Expand:
(x+3)(x+4)
x2+7x+12
Factorise:
x2+7x+12
(x+3)(x+4)
x2=49
x=±7
What is the minimum y value of
y=x2
0
What fictional animal is on the flag of Wales
Dragon
Expand:
(x−5)(x+2)
x2−3x−10
Factorise:
x2+9x+20
(x+4)(x+5)
x2+7x+12=0
x=−3 or −4
Is the graph of
y=-x2
U shaped or n shaped?
Which planet is known as the Red Planet?
Mars
Expand:
(2x+3)(x+5)
2x2+13x+15
Factorise:
x2−5x−24
(x−8)(x+3)
x2−9x+20=0
x=4 or 5
When x = 2 what is the value of y in the equation:
y=2x2-2x+2
6
How many sides does a dodecagon have?
12
Expand:
(x−7)2
x2−14x+49
Factorise:
x2−11x+28
(x−7)(x−4)
x2 +6x−16=0
x = -8 or 2
when y = 5 what are the possible values of x for the equation:
y=x2−4
3 or -3
What is the largest ocean on Earth?
Pacific Ocean
Expand:
(3x−2)2
9x2−12x+4
Factorise:
2x2+16x+32
2(x+4)2
Solve:
x2-2x=-1
Rearrange to: x2-2x+1=0
x = 1
A parabola has x-intercepts at x=2 and x=7.
Write a possible quadratic equation.
You can put your answer in factorised form or expanded
y=(x−2)(x−7)
or
y=x2−9x+14
How many arms does the Hindu god Vishnu have?
Usually 4 but accept 8 as well