(2x^4 + 3x^2)(x^2-1)
you multiply and you'll get:
2x^8-2x^4+3x^4-3x^2
then add the coefficients with x^4
= 2x^8+1x^4-3x^2
the coefficient for x^4 is 1, so the answer is B
Answer:
17.8 cm³
Step-by-step explanation:
The radius of the roll is half the diameter, so is 9 mm. The length of the roll of 50 dimes is 1.4·50 mm = 70 mm. With these dimensions, we can use the formula for the volume of a cylinder:
V = πr²h = π(9 mm)²(70 mm) = 5670π mm³ ≈ 17,812.8 mm³
Perhaps a more convenient unit of measure is cm³. Each cm³ is 1000 mm³, so the volume of a roll of dimes is approximately ...
V ≈ 17.8 cm³
<em>(x - 5)(x + 5)</em>
- Step-by-step explanation:
<u><em> use formula </em></u>
<em>a² - b² = (a - b)(a + b)</em>
<em />
<em>x² - 25 = x² - 5² = (x - 5)(x + 5)</em>
Answer:
24 per bag
Step-by-step explanation:
18x8=144 then divide by 6= 144÷6=24
