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2007-10-05 00:55:13 · 4 answers · asked by . 1 in Science & Mathematics Mathematics

4 answers

(4z+7)^2
=(4z)^2+2*4z*7+(7)^2
=16z^2+56z+49

2007-10-05 01:00:21 · answer #1 · answered by alpha 7 · 2 0

(4z+7)(4z+7)
16z^2 + 28z + 28z + 49
16z^2 + 56z + 49

2007-10-05 08:07:11 · answer #2 · answered by devilishlyangelic91 2 · 0 0

(4z + 7) (4z + 7) = 16 z ² + 56 z + 49

2007-10-05 10:32:04 · answer #3 · answered by Como 7 · 2 1

Hai " ",

(4z + 7)^2 = 16z^2 + 56z + 49 .......using (a + b)^2 = a^2 + 2ab + b^2



Is it O. K. ?!!!!!!!!...... :-)

2007-10-05 08:00:29 · answer #4 · answered by WishInvestor 3 · 0 0

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