Question
Simplify the expression.
\(\left ( a^{\frac{1}{2}}- b^{\frac{1}{2}}\right )\left ( a^{\frac{1}{2}}+ b^{\frac{1}{2}}\right )\)
Answer/Explanation
Ans: a(1) – b(1) www cao
Question
Simplify.
\(\frac{x^{2}-16}{x^{2}-3x-4}\)
Answer/Explanation
Ans: \(\frac{x+4}{x+1}\) final answer
Question
Factorise completely.
15p2 + 24pt
Answer/Explanation
Ans: 3p(5p + 8t) final answer