Question 46
a) Calculate $(-3ab + a^2 - 1) - (-4a^2 + 5ab - 7) + 2(a - 2b)(a + b)$.
b) If $A = 7x^2$ and $B = -2y$, calculate $(A+B)^2$ and $(A+B)(A-B)$.
b) If $A = 7x^2$ and $B = -2y$, calculate $(A+B)^2$ and $(A+B)(A-B)$.
MathNet 2008-part-03 — 165 problems (EN–VI) Question 46
Math Olympiad Vault · MathNet 2008-part-03 — 165 problems (EN–VI)