mula1" title=" 25x { }^{2} + (5x - 3)(2x + 7) - 9" alt=" 25x { }^{2} + (5x - 3)(2x + 7) - 9" align="absmiddle" class="latex-formula">
2 answers:
Step-by-step explanation:
Answer:
35x² + 29x - 30
Step-by-step explanation:
Given
25x² + (5x - 3)(2x + 7) - 9 ← expand factors using FOIL
= 25x² + 10x² + 29x - 21 - 9 ← collect like terms
= 35x² + 29x - 30
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Answer:
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Step-by-step explanation:
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