x2+7x-18 = (x+9)(x-2) when factored
X = 10 7x-5=65 +5 +5 7x=70 /7 /7 So X=10
Oh, what a happy little math problem we have here. To factorise x squared plus 7x, we can first look for a common factor, which in this case is x. So, we can factor out an x to get x(x + 7). And just like that, we've created a lovely little factorised expression.
7x2 + 7x - 14 = 7(x2 + x - 2) = 7(x + 2)(x - 1)
Do you mean the following? x2 = 4 - 7x If so, then: x2 + 7x = 4 x2 + 7x + 49/4 = 4 + 49/4 (x + 7/2)2 = 65/4 x + 7/2 = ±√65 / 2 x = (-7 ± √65) / 2 So x is equal to (-7 - √65) / 2 and (-7 + √65) / 2
7x + 28
It is an algebraic expression which is equivalent to 7x - 118.
x2+7x-18 = (x+9)(x-2) when factored
The product of 7 and x is 7x, so 5 less than that is 7x - 5
7x-5
7x = 46
35
The expression is: 7x-6
21
In mathematics, the expression x7 typically represents the product of x and 7, while 7x represents the product of 7 and x. In general, the order of terms in a multiplication expression does not change the result. However, in algebra, the order of terms can be important when simplifying or solving equations.
Oh, dude, you're hitting me with some math! Okay, so like, an algebraic expression for seven times x is just 7x. It's like saying, "Hey, I want seven of whatever x is." Simple, right? Math can be chill sometimes.
You would write that as:4 < 7x