How do you simplify 3a(2a + 7) + 5(5a + 2)? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer Tony B Apr 5, 2016 6a^2+46a+10 Explanation: Multiplying out the brackets 6a^2+21a+25a+10 6a^2+46a+10 Answer link Related questions How do you write the variable expression for: a quotient of 2 and the sum of a number and 3 ? What are variables? What are variable expressions? How do you write variable expressions? How do you evaluate variable expressions? How do you simplify the expression 3x-x+4? How do you write a quotient of a number and 6 as an expression? How do you evaluate the expression 2x+1 for x=1? How do you write a product of a number and 2 as an expression? How do you write 5 less than 2 times a number as a variable expression? See all questions in Variable Expressions Impact of this question 1503 views around the world You can reuse this answer Creative Commons License