Please factor these- 30 points

g^2 - 64h^6

k^4 - 25k^2

5r^2 + 9r - 18

Step-by-step explanation:

For the first one, factor using difference of squares.

g² − 64h⁶ = (g − 8h³) (g + 8h³)

For the second one, factor out the greatest common factor, then factor the difference of squares.

k⁴ − 25k² = k² (k² − 25) = k² (k − 5) (k + 5)

For the third one, factor using AC method.

5×-18 = -90.

Factors of -90 that add up to +9 are -6 and +15.

Divide by 5 and reduce: -6/5, 15/5 = 3/1.

5r² + 9r − 18 = (5r − 6) (r + 3)

(g - 8h³)(g + 8h³)

k²(k- 5)(k + 5)

(r + 3)(5r - 6)

Step-by-step explanation:

g^2 - 64h^6

g² - (8h³)²

(g - 8h³)(g + 8h³)

k^4 - 25k^2

k²(k² - 25)

k²(k² - 5²)

k²(k- 5)(k + 5)

5r^2 + 9r - 18

5r² + 15r - 6r - 18

5r(r + 3) - 6(r + 3)

(r + 3)(5r - 6)

answer:

your answer is: c. 196 7/8 in^3.

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the 1789 declaration, together with the 1215 magna carta, the 1689 english bill of rights (1689), the 1776 united states declaration of independence, and the 1789 united states bill of rights, inspired in large part the 1948 united nations universal declaration of human rights