Answer:
920 cm^2
Step-by-step explanation:
There are 2 rectangles in the overall shape, find the areas of each rectangle... The first one is 800 and the second is 120 then we add those to make the whole shape: 920!
Look up the 30-60-90 triangle and watch some tutorial videos to help :)
√7x × (√x-7 √7)
√7x √(x-7)×7
√7x√7x-49
√7x×(7x-49)
√49x²-343x
Pemdas stands for parentheses, exponents,multiplication,division,addition, and subtraction. that is the order you need to expand this