Question 1
2 marksSolve
Existing user?
Solve x2+7=88
Solve x2−2x−15=0
Solve x2−11x=0
Solve x2+5x=24
Here is the graph of y=x2−4x+1 for values of x from −1 to 5.
Use the graph to find estimates for the solutions of the equation x2−4x+1=0
Use the graph to find estimates for the solutions of the equation x2−4x+1=3
Priya thinks of a positive number.
She squares the number and then subtracts 3 times the number.
Her answer is 28.
Work out the number Priya thought of.
You must show all your working.
A rectangular flower bed has a width of x metres.
The length of the flower bed is 2 m more than its width.
The area of the flower bed is 35 m2.
Show that x2+2x−35=0
Work out the perimeter of the flower bed.