-40a5+32b2Factor -8 out of -40a5.-8(5a5)+32b2Factor -8 out of 32b2.-8(5a5)-8(-4b2)Factor -8 out of -8(5a5)-8(-4b2).-8(5a5-4b2) Factor -40a^5+32b^2 Solving MATH problems We can solve all math problems. Get help on the web or with our math app