Which expressions are differences of squares?

Choose all answers that are correct.

Question 1 options:

a^2 + 1

h^2 – 20

t^2 – 4

x^2 – 169

Question

Which expressions are differences of squares?

Choose all answers that are correct.

Question 1 options:
	
a^2 + 1

	
h^2 – 20

	
t^2 – 4

	
x^2 – 169

rebeccaxhawaii · Answer

Remember: An algebraic term is a perfect square when the numerical coefficient (the number in front of the variables) is a perfect square and the exponents of each of the variables are even numbers. Example 1: Factor: x2 - 9. Both x2 and 9 are perfect squares.

jhonyy9 · Answer

first of all difference mean minus so this mean that the first one not can being - yes ?

second - use what rebecca have said above so check in what case of these choices these terms are squares sure 

hopw these will help you