Answer:
80 m/s
Step-by-step explanation:
Answer- (5x-1)(2x+1)
let me know if you need to see work
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5g⁴- 5g³ + 20g² - 20g
5g(g³-g²+4g-4)
5g(g²(g-1)+4(g-1))
5g(g-1)(g²+4)
