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:
Please check the explanation.
Step-by-step explanation:
Given
- The length of rectangular field = l = 240m
- The breadth of rectangular field = w = 200m
We can determine the area of the rectangular field using the equation

where
is the length
is the width
substituting l = 240m, and w = 200m in the formula

A = 240 × 200
A = 48000 m²
Given that the cost of digging the field at Rs 10 per m².
Thus,
The cost of digging the field of the area 48000 m² = 10 × 48000
= 480000 Rs
Therefore, the total cost of digging = 480000 Rs
Answer:
c
Step-by-step explanation:
did the test
Answer:
the line pls?
Step-by-step explanation: