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Find the Following Product: (Y2 − 4) (Y2 − 3) - Mathematics

Answer in Brief

Find the following product: (y2 − 4) (y2 − 3)

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Solution

Here, we will use the identity​ \[\left( x - a \right)\left( x - b \right) = x^2 - \left( a + b \right)x + ab\].

\[\left( y^2 - 4 \right)\left( y^2 - 3 \right)\]

\[ = \left( y^2 \right)^2 - \left( 4 + 3 \right)\left( y^2 \right) + 4 \times 3\]

\[ = y^4 - 7 y^2 + 12\]

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APPEARS IN

RD Sharma Class 8 Maths
Chapter 6 Algebraic Expressions and Identities
Exercise 6.7 | Q 1.05 | Page 47
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