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Find the value of the products: (4a^2+3...

Find the value of the products: `(4a^2+3b)(4a^2+3b)a t\ a=1,\ b=2.`

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`(4a^2+3b)(4a^2+3b)`
`(4a^2)^2+(3b)^2+2xx4a^2xx3b`
`16a^4+9b^2+24a^2b`
`where, a=1,b=2`
`16(1)^4+9(2)^2+24(1)^2xx(2)`
`16+8xx4+24xx2`
`16+36+48`
`100`
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