Step-by-step explanation:
The polynomial x³ + 8 is equal to (x + 2)(x² - 2x + 4)
= (x + 2)(x² - 2x + 4)
= x³ - 2x² + 4x + 2x² - 4x + 8
= x³ + (-2 + 2)x² + (4 - 4)x + 8
= x³ + 8
-2[3x-b-2x+x-3b]
-2[(3x - 2x + x) + (-b -3b)]
-2[2x - 4b]
-4x + 8b
(X^2+4)(x+2)(x—2)
Hope this helped:)
Answer:
a) 4⁻³ = 1/64 = 0.015625
b)13⁻² = 1/169 = 0.0059171598
c)(-3)⁻² = 1/-3² = 0.1111111111
Step-by-step explanation:
To solve the question above, when we have an integer ( positive or negative) that is raised to a negative power, this means the reciprocal of that integer raised to the positive power
Example:
a⁻ⁿ = 1/aⁿ
a) 4⁻³ = 1/4³
= 1/(4 × 4 × 4)
= 1/64
= 0.015625
b) 13⁻² = 1/13²
= 1/(13 × 13)
= 1/169
= 0.0059171598
c)(-3)⁻² = 1/-3²
= 1/(-3 × -3)
= 1/9
= 0.1111111111
