Answer:
D is answer
Step-by-step explanation:
you will subtract like terms
A + 2A = 180
3A = 180
A = 60
2A = 120A
Answer:
is the final answer.
Step-by-step explanation:
The difference of two squares identity is a squared number subtracted from another squared number to get factorized in the form of:
![\left(a+b\right)\left(a-b\right)=a^2-b^2](https://tex.z-dn.net/?f=%5Cleft%28a%2Bb%5Cright%29%5Cleft%28a-b%5Cright%29%3Da%5E2-b%5E2)
This identity is often used in algebra where it is useful in applications to integer factorization, the quadratic sieve, the algebraic factorization, etc.
![34\cdot 26=\left(30+4\right)\left(30-4\right)\\\\=30^2-4^2\\\\=900-16\\\\=884](https://tex.z-dn.net/?f=34%5Ccdot%2026%3D%5Cleft%2830%2B4%5Cright%29%5Cleft%2830-4%5Cright%29%5C%5C%5C%5C%3D30%5E2-4%5E2%5C%5C%5C%5C%3D900-16%5C%5C%5C%5C%3D884)