SFR Lesson Notes Trial & Improvement Grade 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
x=
x3 + x
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2. Find the next 2 consecutive 1dp numbers between which x lies 3
x=
x +x
3. Try halfway between the two dp values
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