What is the result when you multiply (10a + b) by (10a + 2b)?
Answer: A. 100a^2+30ab+2b^2
Step-by-step explanation:
(10a+b)(10a+2b)
=(10a+b)(10a+2b)
=(10a)(10a)+(10a)(2b)+(b)(10a)+(b)(2b)
=100a2+20ab+10ab+2b2
=100a2+30ab+2b2
Note: Paayos po ng question, may negative po kasi sa choices pero wala naman sa given.
Reymark R. Bumatay
Bayambang National High School
