Expand and simplify the following: (2x+3)(2x+5)

Expanding this expression means multiplying the contents of the first bracket by the contents of the second. An easy way to remember this is using the FOIL method. FOIL stands for First, Outside, Inside, Last and gives the order we need to multiply the terms. So the First terms in each bracket, 2x and 2x, multiplied together give 4x2 . The outside terms, 2x and 5, gives 10x. The inside terms, 3 and 2x, gives 6x. And, finally, the last terms, 3 and 5, gives 15. This can be simplified because 10x and 6x are of the same order and can be added together. This means the answer is 4x2+16x+15.

RM
Answered by Richard M. Maths tutor

4992 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 5(x-6) < 20


Find the zeroes of the quadratic polynomial x^2 + 8x + 15.


Factorise 12x^2 - 20x + 3


3 postitive whole numbers have a mean of 6. What is the greatest possible range of the numbers?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences