Answer:
(2x+1)(2x−1)
Step-by-step explanation:
4x^2−1
(2x+1)(2x−1)
5(2x - 4) = 45
5(2x) - 5(4) = 45
10x - 20 = 45
10x = 45 + 20
10x = 65
x = 65/10
x = 13/ 2
Thus, x is equal to 13/2
Answer:
m + 132
Step-by-step explanation:
A is 132 miles longer than B, whose length is m.
A = m + 132
Answer:
99
Step-by-step explanation:
4x³-2x²+3x
4×3³-2×3²+3×3
4(27)-2(9)+9
108-18+9
99