SFR Lesson Notes

Trial & ImprovementGrade B

Algebra

Find a solution to the equation x3 + x = 105, giving the solution to 1 decimal place

1. Find 2 consecutive whole numbers between which x lies

2. Find the next 2 consecutive 1dp numbers between which x lies

x = x3 + x Comment

x = x3 + x Comment

3. Try halfway between the two dp values