Question

a²-17a - 60 factorise the question​

Answer 1

Answer:

${a}^{2} - 17a - 60$

${a}^{2} + 20a - 3a - 60 = 0$

$a(a + 20) - 3(a + 20) = 0$

$(a - 3)(a + 20) = 0$

$a = 3 \: or \: a = - 20$

Answer 2

Answer:

The commutative property is a math rule that says that the order in which we multiply numbers does not change the product.