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Substitution

Write the squ...

Question

Write the squares of:

(1) 3

(2) −5

(3) +4

(4) −2

(5) +6

(6)

(7)

(8)

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Solution

(1) 3² = 3 × 3 = 9

Thus, the square of 3 is 9.

(2) (−5)² = (−5) × (−5) = + 25

Thus, the square of −5 is +25.

(3) (+4)² = 4 × 4 = 16

Thus, the square of +4 is 16.

(4) (−2)² = (−2) × (−2) = +4

Thus, the square of −2 is +4.

(5) (+6)² = 6×6 = 36

Thus, the square of +6 is 36.

(6) = × =

Thus, the square of is.

(7)

Thus, the square of is.

(8)

Thus, the square of is.

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