LCM (lowest common multiple) and GCF (greatest common factor) are very important for deciphering some equations.
The GCF is the greatest factor that divides two numbers. to factor this polinomial, you would need the GCF:
The greatest common factor would be 2x.
The LCM is the smallest integer that is evenly divisible by both a and b. For example,LCM (2,3) = 6 and LCM (6,10) = 30.
the LCM is 75n to the power of 4
This week in math I’ve learned how to factor trinomials.
This is how I did it:
3x(-5) and 1x(-15) both equal -15, 3+(-5) = -2.
This week in math ive learned how to factor polynomials.
This is how I solved it:
I took away the GCF from each set, subtracting it from the top, then putting the GCF in front of the remaining equation in brackets.
This week in math I have learned how to simplify polynomial equations.
How to solve for sin, cos and tan on a right triangle:
SOHCAHTOA is helpful to memorise the equations for sin, cos and tan.
SOH is sin= opposite/hypotenuse
CAH is cos= adjasent/hypotenuse
TOA is tan= opposite/adjasent
the hypotenuse is found diagonal from the 90 degrees point, the adjacent side is found next to the angle point, and the opposite side is found across from the angle.
here are some examples of how to solve missing parts of a triangle: