What addition doubles fact can you find 4+ 3? explain how you know

4+3=7
the answer is 7 because 4+4=8 then carry away 1 and you get 7

Another way to look at it is:

The answer is 7 because for example if you have 4 apples and your friend gives you 3 more apples because she hate apples then you would have 7 apples all together if you counted them.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

the answer would be c:   ax + b = ax + c

step-by-step explanation: