Britney is solving a quadratic equation. her first

step is shown below.

problem: 3x^2– 8-10x = 3(2x + 3)

step 1: 3x2^2 - 10x - 8 = 6x + 9

which two properties did britney use to get to step

1?

i addition property of equality

ii. commutative property of addition

iii. multiplication property of equality

iv. distributive property of multiplication

over addition

1) i and ii

2) i and iv

3) ii and iii

4) ii and iv