Answer:

multiply x through out:

factorise out x²:

take square root on both sides:

Answer: QR
<u>Step-by-step explanation:</u>
The simplest way to explain this is that the letters are in the same order.
B C D E
O P Q R
BC ≡ OP
CD ≡ PQ
DE ≡ QR
BE ≡ OR
Answer:
4x° = (80 - x)°
Step-by-step explanation:
These angles are known as vertical angles. Vertical angles are equal to one another.
Answer:
292,466,875.95
Step-by-step explanation: