How to factor 8x^2+4−12

Step-by-step explanation: Subtract the numbers

8x^2+4-12=8x^2-8

Anaswer: 8x^2-8

If this wasn't the right answer sorry

8x^2+4-12=64x+4-12

64x+4-12= 4(16x-3)

hope it helps

Expression 2a + b represents the situation (total cost) of buying a apples and b bananas.

Solution:

Given that  Daryl is buying apples and bananas.

He bought (a) pounds of apples that cost \$2 per pound.

He bought (b) pounds of bananas that cost \$1 per pound.

Need to write an expression which represents the situation.

Cost of 1 pound of apple = 2

\text { So cost of } a \text { pounds of apple }=a \mathrm{x} \text { Cost of } 1 \text { pound of apple }=a \mathrm{x} 2=2 a

Cost of 1 pound of banana =1

\text { So cost of } b \text { pounds of banana }=b \text { x Cost of } 1 \text { pound of banana }=b \times 1=b

Total cost of apples and banana = 2a + b  

Hence, the required expression is 2a + b.