The expression -7x² represents a mathematical operation where -7 is multiplied by the square of a variable x. To find its value, you need a specific value for x. For example, if x = 2, then -7x² = -7(2²) = -7(4) = -28. Without a specific value for x, the expression remains as is: -7x².
7x2 plus 7x5 = 49
7x2 + 68xy - 20y2
7x2- 63 = -35, when x equals 2
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).
7x2=14-2=12x2=24 [(7x2)-2]x2=24
14
7x2
7x2 + y
14
7x2 plus 7x5 = 49
7x2 + 68xy - 20y2
(7x2 + 9)(4x - 1)
7x2=14x7=21x7=28x7=35x7=42x7=49x7=56x7=63
7x2- 63 = -35, when x equals 2
You can take 7x2 out of both of those, leaving 5x4 and 1.
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).
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