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x = (y+12)/3

Lets begin by splitting the bx term to make factorising possible: 2x² - x - 21 is the same as 2x² - 1x - 21What two numbers = -1 when added, and = -42 when multiplied together?(note ...

1. x=5 2) x=2

6-(x/2)

Work out 2³⁴/(2³)¹⁰ (2³)¹⁰= 2³⁰ 2³⁴/2³⁰= 2⁴ = 16