Question

what is v sq minus u sq

Answer 1

${v}^{2} - {u}^{2} \\ = (v + u)(v - u)$
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Answer 2

s = ½ (u+v) (v-u)÷a. Expanding the brackets, and multiplying out the ½ and a: 2as = (u+v)(v-u) 2as = v² - u² This rearranges to: v² = u² + 2as.