Answer:
10s²-15s+20
Explanation:
5(2s²−3s+4)
open the bracket
10s² - 15s + 20
multiply each term in the parenthesis by the 5 outside
= (5 × 2s²) +(5 × - 3s) + (5 × 4)
= 10s² + (- 15s) + 20
= 10s² - 15s + 20
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