Question

expand sums (2x+7) (2x-7)​

Answer 1

(2x+7)(2x-7)

here we use identity ( a+b)(a-b)=a^2-b^2

a=2x,b=7

(2x+7)(2x-7)=(2x)^2-(7)^2

=4x^2-49

Answer 2

Given:-

→(2x+7)(2x-7)

$\rule{200}{1}$

To Find:-

→The expanded form of (2x+7)(2x-7)?

$\rule{200}{1}$

AnsWer:-

★On expanding the equation★

→(2x+7)(2x-7)=(2x)²-(7)²

[°•° (a+b)×(a-b)=a²-b²]

→(2x+7)(2x-7)=4x²-49

๛Hence, On expanding (2x+7)(2x-7) we get 4x²-49 as the Answer

$\rule{200}{2}$