Hey there!!
Basic formula :
... a² - b² = ( a + b ) ( a - b )
Equation given :
... 81x² - 25
... ( 9x )² - ( 5 )²
... ( 9x + 5 ) ( 9x - 5 )
Hope it helps!!
Answer:
a peso worth is 5 cent
Step-by-step explanation:
i hope thag helps so 5 all tye ways to 100
Answer: X > 100
Step-by-step explanation:
X - 19 < 81
Once the less than sign is turned over
X > 81 +19
X > 100
Thus, the value of X must be greater than 100
(4.2*105)+(5.3*10^5)
441 + 530000
530441
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If your problem is (4.2*10^5)+(5.3*10^5), it would be
420000 + 530000
950000
(x - 7)(y - 9)
x*(y - 9) - 7*(y - 9)
x*y - x*9 - 7*y -7*(-9)
xy - 9x - 7y + 63
That's the product.
