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MBD-ALGEBRAIC EXPRESSIONS AND IDENTITIES-EXERCISE
- Find the following squares by using the identities. (0.3a-0.5b)^2
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- Simplify: (x^2+y^2)^2.
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- Simplify: (3m+4)^2-(3m-4)
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- Simplify: (5p-7q)^2+(5p+7q)^2
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- Simplify: (5x+3y)^2 + (5x+3y)^2.
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- Simplify: (mn+np)^2 - 2mn^2p.
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- Show that : (a+b)^2 - 4ab=(a-b)^2.
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- Show that : (3x-7)^2 +84x=(3x+7)^2.
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- Show that : (2/3 m+ 3/2 m)^2 - 2mn = 4/9 m^2 +9/4 n^2 .
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- Show that : (5xy +3y)^2 - (5xy-3y)^2 = 60 xy^2.
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- Show that : (x-y) (x+y) +(y-z)(y+z)+(z-x)(z+x)=0.
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- Using identities,evaluate: 61^2.
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- Using identities,evaluate: 79^2.
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- Using identities,evaluate: 103^2
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- Using identities,evaluate: 997^2.
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- Using identities,evaluate: 4.9^2
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- Using identities,evaluate: 52^2.
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- Using a^2-b^2 = (a+b)(a-b) ,find: 52^2 - 8^2.
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- Using a^2-b^2 = (a+b)(a-b) ,find: (2.03)^2-(0.97^2.
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- Using a^2-b^2 = (a+b)(a-b) ,find: 983^2-17^2.
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