The second answer with the equilateral triangle
It is a right angle,90° is a right angle also, triangle.
He is not correct because 3.5 is actually 3 and 1/2
not 3/5
hope that helps @:)
Answer:
1 Use Difference of Squares:
a^2-b^2=(a+b)(a−b).
10(x^2-4^2)
2 Simplify 4^2 to 16
10(x^2 −16)
3 Expand by distributing terms.
10x^2 −160
Step-by-step explanation:
Hope dis helps and pls mark me as brainlist!!!
§ALEX§
