7x2 + y
(7x + 5)(x - 2)
7(x-5)^2
Start by adding 7, then add 7x2, then 7x4, then 7x8, etc. 2 + (7x1) = 9 9 + (7x2) = 23 23 + (7x4) = 51 51 + (7x8) = 107 The next number is 219.
Assuming the missing operational signs are pluses, the answer is (x + 7)(7x + 1)
7x2 + y
7x2
7x2 plus 7x5 = 49
7x2 + 68xy - 20y2
(7x2 + 9)(4x - 1)
You can take 7x2 out of both of those, leaving 5x4 and 1.
7x2=14x7=21x7=28x7=35x7=42x7=49x7=56x7=63
7x2- 63 = -35, when x equals 2
14
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).
84
7x2