Question

subtract: (3x^2 - 15d) - (-10x^2 - 4d)
your answer should be in simplest terms.
enter the correct answer

Explanation:

Step1: Distribute the negative sign

$(3x^{2}-15d)-(-10x^{2}-4d)=3x^{2}-15d + 10x^{2}+4d$

Step2: Combine like - terms

$(3x^{2}+10x^{2})+(-15d + 4d)=13x^{2}-11d$

Answer:

$13x^{2}-11d$