Answer:
a & c
Step-by-step explanation:
Step-by-step explanation:
Use the form (a + b)(a - b) = a^2 - b^2:
(2x^4 + 3x^3)(2x^4 - 3x^3) = 4x^8 - 9x^6.
Answer:
The length of rectangular pool is 167 meters and the width is 40 meters
Step-by-step explanation:
Let
x ----> the length of rectangular pool
y ----> the width of rectangular pool
we know that
The perimeter of rectangle (rectangular pool) is equal to

we have

so

simplify
----> equation A
----> equation B
solve the system by substitution
substitute equation B in equation A
solve for y

Find the value of x
therefore
The length of rectangular pool is 167 meters and the width is 40 meters