Answer:
8x^4 - 28x^3 + 4x^2.
Step-by-step explanation:
4x(2x^3 - 7x^2 + x)
= 4 * 2x^3 + 4x*-7x^2 + 4x*x
= 8x^4 - 28x^3 + 4x^2.
Answer:
29
Step-by-step explanation:
hope this helps
Sorry if I’m wrong
Step-by-step explanation:
let the unknown be x
length = x
width = 3.6 cm
Perimeter = 2 lengths + 2 widths
48 cm = x + x + 3.6 + 3.6
48 cm = 2x + 7.2
40.8 = 2x
20.4 cm = x
if you wanna check,
perimeter = 20.4 + 20.4 + 3.6 + 3.6
48 cm = 48
Answer:
Step-by-step explanation:
x² = 10² - 6² = 100 - 36 = 64
x = √64 = √8*8 = 8
Right angle triangle, use Pythagorean theorem
(hypotenuse)² = (adjacent)² + (opposite)²