What is expand (a^2-1)b^2-4(a^2-1) ?

The solution to expand (a^2-1)b^2-4(a^2-1) is b^2a^2-b^2-4a^2+4

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expand (a^2-1)b^2-4(a^2-1)

expand

(a^{2} - 1) b^{2} - 4 (a^{2} - 1)

b^{2} a^{2} - b^{2} - 4 a^{2} + 4

Solution steps

(a^{2} - 1) b^{2} - 4 (a^{2} - 1)

= b^{2} (a^{2} - 1) - 4 (a^{2} - 1)

Expand

b^{2} (a^{2} - 1) : b^{2} a^{2} - b^{2}

= b^{2} a^{2} - b^{2} - 4 (a^{2} - 1)

Expand

- 4 (a^{2} - 1) : - 4 a^{2} + 4

= b^{2} a^{2} - b^{2} - 4 a^{2} + 4

\frac{1}{3} \cdot \frac{6}{5}

y^{6} - x^{4}

a^{2} b^{2} - c^{2}

x^{2} - 1

(d^{7})^{6}

What is expand (a^2-1)b^2-4(a^2-1) ?
The solution to expand (a^2-1)b^2-4(a^2-1) is b^2a^2-b^2-4a^2+4