(x+5)(2x+3)
45
12 + 15 + 63 + 12 + 24 + 34 + 23 + 15 = 198
The answer is 270. Simply add up all of the numbers arithmetically like you would for two plus two. To make sure the answer is correct, check your work using a calculator.
55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256
162
(2w + 3)(w + 5)
2w2 - 19w
2w2 - 17w + 21 is a quadratic expression which, when treated as a function of x, describes a parabola that intercepts the x-axis at the points (-1.5, 0) and (7, 0), and has a vertex at the point (4.25, -15.125). It's factors are (2w - 3), and (w - 7)
2W2
2W2
2W2
-13w
HELICAL 13W 120VAC 60Hz 180mA13W means 13 watts cfl...... =40 watt incadescent.
It equals 285
There is no equation, just an expression. And, since it is an expression, it cannot be solved so w can equal any value whatsoever.
w2 - 13w + 48You want to write the equation in the form (w+a)(w+b). However, if this particular equation could be written in this form, there would be at least one value of x where y = 0. There are no such solutions for this equation, so it cannot be factored into this form.However, you can factor it if you separate 48 into 42.25 + 5.75:w2 - 13w + 48 = (w - 6.5)2 + 5.75 = (w - 6.5)(w - 6.5) + 5.75
15 x 6 or the long way is 90