Question

for problems 2 - 9, write the expression as repeated addition. evaluate each expression. 2. 4(2) 3. 4(-2) 4. -4(2) 5. 3(-4)

Explanation:

Step1: Rewrite as repeated addition for 4(2)

$4(2)=2 + 2+2 + 2$

Step2: Evaluate 4(2)

$2 + 2+2 + 2=8$

Step3: Rewrite as repeated addition for -4(2)

$-4(2)=(- 2)+(-2)+(-2)+(-2)$

Step4: Evaluate -4(2)

$(- 2)+(-2)+(-2)+(-2)=-8$

Answer:

For 4(2): Repeated addition is $2 + 2+2 + 2$, value is 8.
For -4(2): Repeated addition is $(- 2)+(-2)+(-2)+(-2)$, value is -8.