Multiplication is an abbreviated form of addition.
For instance,
3 × 3 = 3 + 3 + 3 = 9
Answer:
(x+1)(x+8)
Step-by-step explanation:
x^2+9x+8
You just need to multiply the first number to the last. (a·c) In this case *a* is jus a positive 1. Then, you just find a product to the result you got from (a·c) that when it is added together the result is the same as the one you have as ¨b¨.
Also the sign betwee b and c tells you that if it is positive both of your products are going to have the same sign, and if it is negative it means that they are going to be different,(one negative and one positive). If the sign is positive then go to the sign between a and b, this tells you what sign your factors will have.
<h2>x^2+9x+8</h2>
a·c=8
<u>Product Sum</u>
1,8 8
2,4 6
ect... ect...
x^2+x+8x+8
x(x+1) 8(x+1)
(x+1)(x+8)
<u />
The value of the 7 in the hundredths place is 10 the value of the 7 in the thousandths place. The value of the 7 in the tens place is 10 times the value of the 7 in the ones place. The value of the 7 in the hundreds place is 10 times the value of the 7 in the tens place.
Hope this helped!
Nate
