well, just plug in your values:
2.5a - 3b(-4.1 + a(-3.3b - b) - b) + a
2.5(-0.5) - 3(2.5)(-4.1 + (-0.5)(-3.3(2.5) - (2.5)) - (2.5)) + (-0.5)
Work through step by step, and you should come up with 7.4375
Simplify and evaluate the expression for a = -0.5, b = 2.5
2.5a - 3b(-4.1 + a(-3.3b - b) - b) + a
2 answers
Thank you Steve very much