Expand the following using expansion formulae
A) (4x+ y-7)^2
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By (a+b+c) ² = a²+b²+c²+2ab+2ac+2bc
→(4x+y-7)²
→(4x)²+(y)²+(7)² +2(4x)(y) +2(7)(4x) +2(7)(y)
➪16x²+y²+49+8xy+56x+14y
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Step-by-step explanation:
दिग्ज का समानार्थी शब्द लिखिए।
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