Factorise 15a^2 + ab - 6b^2
15a2+ab-6b2
=(?a+?b)(?a-?b)
factors of 15= 3 and 5
factors of 6= 2 and 3
if we try (3a+2b)(5a-3b) that gives us 15a2+10ab-9ab-6b2 = 15a2+ab-6b2
therefore the answer is (3a+2b)(5a-3b)
AB
15a2+ab-6b2
=(?a+?b)(?a-?b)
factors of 15= 3 and 5
factors of 6= 2 and 3
if we try (3a+2b)(5a-3b) that gives us 15a2+10ab-9ab-6b2 = 15a2+ab-6b2
therefore the answer is (3a+2b)(5a-3b)
