X^2-3x = x(x-3)
x^2-9 = x^2 - 3^2 = (x-3)(x+3)
HCF = x-3
False, it's always on the vertex of the parabola.
Given parameters:
1.
; find the LCM = 8
=
=
2.
Make the fraction decimal;
= -2.4
So;
-2.4 + 15.3 = 12.9
You must perform a subtraction between the result of two multiplications. In fact, since multiplications have a higher priority than subtraction, you must perform them first. Also, remember that a positive times a negative is a negative.
So, you must perform the operations in this order:
![[-6\cdot 7]-[6\cdot(-2)] = [-42]-[-12] = -42+12 = -30](https://tex.z-dn.net/?f=%20%5B-6%5Ccdot%207%5D-%5B6%5Ccdot%28-2%29%5D%20%3D%20%5B-42%5D-%5B-12%5D%20%3D%20-42%2B12%20%3D%20-30%20)