Worksheet 1.1
rewrite each binomial as the multiple of two binomials.
1) x2 – 16
2) x² – 25
3) 4x2 - 9y?
4) x² - ya
answer each multiplication problem by using the difference of two squares. show your steps.
5) 73.67
6) 34.26
7) 65.55
8) 81.79

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

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step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870