y=3, and y=-3. 6y² - 54 = 0 factors to 6(y² - 9) = 0 --> 6(y + 3)(y - 3) = 0
By factoring. q2 + 16q = 0 q (q + 16) = 0 Now, either q = 0, or q + 16 = 0. Solve those two equations to get the solution.
15 = 8x2 - 14x; whence, 8x2 - 14x - 15 = (2x - 5)(4x + 3) = 0. Therefore, x = 5/2 or -3/4.
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0
0 divided by 5 equals 0. 5 divided by 0 equals undefined, not 0.Any number divided by 0 is undefined.
By factoring: x(1-x) = 0 Therefore: x = 0 or x = 1
(3x+4)(3x-4)=0 x=±4/3
x2 - 14x = -49 ∴ x2 - 14x + 49 = 0 ∴ (x - 7)2 = 0 ∴ x = 7
By factoring. q2 + 16q = 0 q (q + 16) = 0 Now, either q = 0, or q + 16 = 0. Solve those two equations to get the solution.
Simple factoring. X^2 + 4.5X = 0 factor out X X(X + 4.5) = 0 X = 0 X = -4.5 graph on TI-84 agrees
The roots are -3 and -7. Easily by factoring and setting each factor equal to 0. The factors are x + 7 and x +3.
9x2+6x-8 = 0 (3x+4)(3x-2) = 0 Therefore: x = -4/3 or x = 2/3
It is: 5s(5s-3)
Y =sqrt(4x^2 +64/16) I would, after factoring, say +/- 2; horizontally
n2 = 20 + n so n2 - n - 20 = 0 that is (n - 5)(n + 4) = 0 so that n - 5 = 0 or n + 4 = 0 n = 5 or n = -4
y2+7y=18 y2+7y-18=0 (y+9)(y-2)=0 y=-9 & y=2
just like factoring any other trinomial.