Algebra Substitution a = 3 ; b = 4 and c = -1 2a + c b2 – a2 2b2

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Algebra Substitution a = 3 ; b = 4 and c = -1 2a + c b2 – a2 2b2 Evaluating Expressions – number for letter Given the following information find the values of :- BODMAS a = 3 ; b = 4 and c = -1 2a + c b2 – a2 2b2 = 2x3 + (-1) = 42 – 32 = 2x(4)2 = 2x3 - 1 = 16 – 9 = 2x16 = 6 - 1 = 7 = 32 = 5

Algebra Substitution 2a2 + 3b + 30c = 2x(3)2 + 3x4 + 30x(-1) Evaluating Expressions – number for letter Given the following information find the values of :- a = 3 ; b = 4 and c = -1 2a2 + 3b + 30c = 2x(3)2 + 3x4 + 30x(-1) = 18 + 12 - 30 = 0