Answer:
Formula:
(a + b)2 = a2 + 2ab + b. (a – b)2 = a2 – 2ab + b. (a + b) (a – b) = a2 – b.
Step-by-step explanation:
Diko masagot na nasa pic, diko mabasa sobrang labo. formula lang bilagay ko para may guide ka.
Let x be the number.
18 will be added to the difference of the number and 38 so will write 18 + (x - 38).
Then the sum is 90 so we will write = 90 at the end of the expression.
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Answers & Comments
Answer:
Formula:
(a + b)2 = a2 + 2ab + b. (a – b)2 = a2 – 2ab + b. (a + b) (a – b) = a2 – b.
Step-by-step explanation:
Diko masagot na nasa pic, diko mabasa sobrang labo. formula lang bilagay ko para may guide ka.
Answer:
Solution:
Let x be the number.
18 will be added to the difference of the number and 38 so will write 18 + (x - 38).
Then the sum is 90 so we will write = 90 at the end of the expression.