Question

solve 2(a×a + ab) + 3 - ab when a =5 and b= -3​

Answer 1

2(a×a + ab) + 3 - ab = 2a² + 2ab + 3 - ab = 2a² + ab + 3

При a = 5 и b = -3, то

2 * 5² + 5 * (-3) + 3 = 50 - 15 + 3 = 38