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Multiplication precedes addition or subtraction | 
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Got it ! $(-2)- (-3)^2$ = $(-2)(-1)(+1)- (+1)(+2)^2$ = $2-2\cdot a$ = $0\cdot b - 1$ =
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Multiplication precedes addition or subtraction |
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Got it ! $(-2)- (-3)^2$ = $(-2)(-1)(+1)- (+1)(+2)^2$ = $2-2\cdot a$ = $0\cdot b - 1$ =