Answer:
She didn't put the sign's in the proper place, it should be ( x + 3 ) ( x - 7 )
Step-by-step explanation:
( x - 3 ) ( x + 7 ) = x² + 7x - 3x - 21 = x² + 4x - 21
( x + 3 ) ( x - 7 ) = x² - 7x + 3x - 21 = x² - 4x - 21
Answer:
x = 3/7
Step-by-step explanation:
Step 1:
6 - 2x = 3 + 5x Equation
Step 2:
6 = 3 + 7x Add 2x on both sides
Step 3:
3 = 7x Subtract 3 on both sides
Answer:
x = 3/7 Divide
Hope This Helps :)
Answer:
1. 9 to the power of 7
2. 7 to the power of 8
3. 10 to the power of 8.
4. 3 to the power of 9.
5. 2 to the power of 12.
Step-by-step explanation:
5 hundreds is 500. So 500x10= 5000.
Answer:5000
Answer: 3’ 3”
Step-by-step explanation:
