Multiply.

Question

A).  5(-7)(3)(-4)

B).  -5/8(-4/3)

C).  (-7)(5)(-6)(-0.5)

Answer 1

A) The expression is  5(-7)(3)(-4).

Product of two different signs is negative.

= -35 (3)(-4)                    [Multiply:  5 * 7 = 35]

= -105 (-4)                       [Multiply:  35 * 3 = 105]

Product of two same signs is positive.

= 420                               [Multiply:  105 * 4 = 420]

The product is 420.

B) The expression is  .

Use rule for multiplying fractions.

Product of two same signs is positive.

The product is 5/6 or 0.8333.

C) The expression is  (-7)(5)(-6)(-0.5).

Product of two different signs is negative.

= -35 (-6)(-0.5)                  [Multiply:  7 * 5 = 35]

Product of two same signs is positive.

= 210 (-0.5)                       [Multiply:  35 * 6 = 210]

Product of two different signs is negative.

= -105                               [Multiply:  210 * 0.5 = 105]

The product is -105.