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Factor the trinomial x3-2x2-15x Write each factor as a polynomial in descending order?
xxx-2xx-15xx(xx-2x-15)Factor (long):axx+bx+ca=1b=-2c=-15Multiply a and c:1*-15=-15Find multiples of ac that add up to b (d,e [ie de=ac, d+e=b]):-15=-1*3*5-15=3*-5, -3*5Rewrite axx+bx+c into axx+dx+ex+c:x(xx+3x-5x-15)Factor sets of terms (ie axx+dx, and ex+c):x(xx+3x-5x-15)x(x(x+3)-5(x+3))Combine like terms:x(x-5)(x+3)Factor (short):-if trinomial is written in the form of 1xx+bx+c it can be written in the form of (x+d)(x+e) where d and e are multiples of c that add up to bx(xx-2x-15)Multiply a and c:1*-15=-15Find multiples of ac that add up to b (d,e [ie de=ac, d+e=b]):-15=-1*3*5-15=3*-5, -3*5x(x+3)(x-5)
Which number is th e smallest 3-4 3-5 17-20 9-19?
Answer9-19
Twelve is six six is three three is five and five is four How?
In Spanish 12 is 4, 4 is 6, 6 is 4 (and 5 is 5); In French 12 is 5, 5 is 4, 4 is 6, 6 is 3 and 3 is 5; In German 12 is 5, 5 is 4 and 4 is 4. Still stuck? Send me a message! well that was a riddle that someone had given me, and the answer wasn't mathmatical..... T W E L V E = six letters S I X = three letters T H R E E = 5 letters F I V E = four letters FOUR = four letters...... so yeah...
-3 plus ln x equals 5?
-3 + ln(x) = 5Add 3 to each side:ln(x) = 8x = e(8) = 2,980.958 (rounded)
How would i simplify e cubed over cube root of e squared multiplied by e to the power of thirteen?
Cube root is the same as to the power of a third; when multiplying/dividing powers of a number add/subtract the powers; when a power is to another power, multiply the powers; as it is all e to some power: e³/(e²)^(1/3) × e^13 = e³/e^(2/3) × e^13 = e^(3 - 2/3 + 13) = e^(15 1/3) = e^(46/3) Which can also be expressed as "the cube root of (e to the power 46)" or "(the cube root of e) to the power 46".
