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p. 350, l. 10, 31, for a and a2, read a2 and a~2. p. 351, l. 24, for (2ax)1 ́3 +, read (2ax)**3 =.

p. 353, 1. 2, for ✔✅a22 and √(811⁄4/a) read a2÷

and (81a).

p. 356, l. 3, for where, read when.

p. 360, 1. 11, for 3/9, read 33/9.

p. 365, l. 14, for to observed, read to be observed. p. 370, 1. 17, for increased, read concerned.

p. 371, 1. 6, for having, read have.

p. 374, l. 7, 22, for

-4) and 2.

(19-4) and 2, read (9

p. 376, 1. 2, 30, for x-y2 and -3x2, read x2-y and 3x2.

p. 377, l. 16, After Ex. 1. read the following: Cubing both sides, x2=a+b; ··· x = ± √ (a+b). Ex. 2. ¡Given / (x2 −8)=√(x-3), to find the values of x.

p. 377, l. 16, 18, 24, for value and quantity, read values and equation.

p. 380, l. 1, 25, for 3abx and x, read 2abx and a. p. 381, 1. 29, for x y, read x-y. do. 1. 33, for y=4, read y=3.

p. 382, 1. 17, for

y3, read +y3.

p. 383, 1. 4, for a given ratio, read given ratios. p. 337, 1. 3, for 16, read 6.

p. 388, l. 16, for to the sum of their cubes as 20 to 7, read to the difference of their squares as 52 to 1.

p. 388, 1. 37, after were, read persons relieved; and each woman received twice as many shillings as there were women more than men.

p. 390, 1. 3, for x=-n, read x=-✔✅n. p. 394, l. 18, for x2 read x.

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p. 404, l. 18, for 1±√−7, read ±√−7. p. 406, 1. 9, for 6, read-6.

p. 407, l. 22, for 16, read 16x. p. 408, 1. 23, for y, read y2.

p. 412, l. 11, for x=8, read x=3. p. 416, l. 26, for 18, read 8.

p. 417, l. 6, 13, for as and square root of, read at and square of.

3

p. 437, l. 22, for (c2-x
x*), read (c2 —x2)3 ̧
p. 438, l. 7, for values, read value.
p. 440, l. 8, for b-d, read b and d.
p. 444, l. x, forc, read d.

p. 463, 1. 4, for (x), read (x)m.

p. 464, l. 19, for x=0, read x=a.

p. 480, 1 4, for x+1-7, read x=-7. p. 482, 1. 38, for Equationum, read Equationem.

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