7(3y-2)-(-4y+9)
6 squared plus 9 squared is equal to 117.
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
{-1,7}
Using the discriminant the possible values of k are -9 or 9
12 plus 9 equals 21.
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
92 = 81122 = 14481 + b2 = 144(take 81 from both sides)b2 = 63b = 7.937253933
x^2 +9 =x^2 -9 9=-9 No solution
Using the discriminant for a quadratic equation the value of k works out as plus or minus 12.
7(3y-2)-(-4y+9)
No, it is not. For a right triangle, from the Pythagoraen theorem, 7 squared plus 9 squared does not equal 12 squared
Yes it is. The thing that makes it a quadratic equation is that "x squared" in there.
27
6 squared plus 9 squared is equal to 117.
12 + 16 + 18 + 20 + 9 = 75
2 squared plus 2 squared equals 16 because 2 squared is 4 times 4 equals 16. Math: 4x4=16 so your answer is 16 :)!