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Popular >

expand-9(x+Δx)^2-15

Solution

expand

- 9 (x + Δ x)^{2} - 15

Solution

- 9 x^{2} - 18Δ x^{2} - 9 Δ^{2} x^{2} - 15

Solution steps

- 9 (x + Δ x)^{2} - 15

(x + Δ x)^{2} = x^{2} + 2Δ x^{2} + Δ^{2} x^{2}

= - 9 (x^{2} + 2Δ x^{2} + Δ^{2} x^{2}) - 15

Expand

- 9 (x^{2} + 2Δ x^{2} + Δ^{2} x^{2}) : - 9 x^{2} - 18Δ x^{2} - 9 Δ^{2} x^{2}

= - 9 x^{2} - 18Δ x^{2} - 9 Δ^{2} x^{2} - 15

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Frequently Asked Questions (FAQ)

What is expand-9(x+Δx)^2-15 ?
The solution to expand-9(x+Δx)^2-15 is -9x^2-18Δx^2-9Δ^2x^2-15