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245-45a^{4}
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245-45a^{4}
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\left(15a^{2}-35\right)\left(-3a^{2}-7\right)
Use the distributive property to multiply 5 by 3a^{2}-7.
-45a^{4}+245
Use the distributive property to multiply 15a^{2}-35 by -3a^{2}-7 and combine like terms.
\left(15a^{2}-35\right)\left(-3a^{2}-7\right)
Use the distributive property to multiply 5 by 3a^{2}-7.
-45a^{4}+245
Use the distributive property to multiply 15a^{2}-35 by -3a^{2}-7 and combine like terms.
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