Question

multiply 2a +3b - 4c and 9a -16b - 5c​

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

• (2a+3b-4c)(9a-16b-5c)
• 2a(9a-16b-5c)+3b(9a-16b-5c)-4c(9a-16b-5c)
• 18a^2-32ab-10ac+27ab-48b^2-15bc-36ac+64bc+20c^2
• 18a^2-5ab-46ac-48b^2+49bc+20c^2

Answer 2

Answer:²

Step-by-step explanation:

(2a+3b-4c) (9a-16b-5c)

2a(9a-16b-5c) + 3b(9a-16b-5c) + -4c(9a-16b-5c)

18a²-32ab-10ac+27ab-48b-15cb+(-36ac+64cb+20c²)\

18a²-32ab-10ac+27ab-48b²-15cb-36ac+64cb+20c²

18a²-48b²+20c²-5ab-46ac+ 49cb