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Completing the Square - help A level watch

2. (Original post by SmartFailure)
...
Which question...? Also in your pic the page bends too much so it's hard to read the left side.

3. I was thinking for part b it would be 0.00012x^2 = 146
x= 1000692 but that seems way too large
4. (Original post by SmartFailure)
I was thinking for part b it would be 0.00012x^2 = 146
x= 1000692 but that seems way too large

divide through by 0.00012 before square rooting as 0.00012 is not squared --- only the x is squared and you should get 1 value and then think about the limitations of your calculator to do with square roots to get the second
5. (Original post by SmartFailure)
I was thinking for part b it would be 0.00012x^2 = 146
x= 1000692 but that seems way too large
But

Catastrophic heights you got going on there and I dont know where from.

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