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Pearson Algebra 2 Common Core, 2011

PA

Pearson Algebra 2 Common Core, 2011 View details

Cumulative Standards Review

Exercise 2 Page 428

Apply inverse operations to isolate b.

G

Practice makes perfect

To solve the given equation for b, we will use the Properties of Equality to apply inverse operations on the equation. Remember, only like terms can be combined.

ax^2 + bx + c = 0

LHS-c=RHS-c

bx + ax^2 = - c

LHS-ax^2=RHS-ax^2

bx = - c - ax^2

.LHS /x.=.RHS /x.

b = - c -ax^2/x

This expression for b corresponds to option G.