HP 50g User Manual page 69

Press the right arrow key, ™, until the cursor is to the right of the x
Type Q2 to enter the power 2 for the x
Press the right arrow key, ™, until the cursor is to the right of the y
Press the delete key, ƒ, once to erase the characters y.
Type ~„x to enter an x
Press the right arrow key, ™, 4 times to move the cursor to the right of
the *
Type R to enter a square root symbol
Type „Ü to enter a set of parentheses (they come in pairs)
Press the right arrow key, ™, once, and the delete key, ƒ, once, to
delete the right parenthesis of the set inserted above
Press the right arrow key, ™, 4 times to move the cursor to the right of
the b
Type „Ü to enter a second set of parentheses
Press the delete key, ƒ, once, to delete the left parenthesis of the set
inserted above.
Press ` to return to normal calculator display.
The result is shown next:
Notice that the expression has been expanded to include terms such as
|R|, the absolute value, and SQ(b R), the square of b R. To see if we can
simplify this result, use FACTOR(ANS(1)) in ALG mode:
Press „˜ to activate the line editor once more. The result is now:
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