Question

5. (a + 7) (a - 10) + 16​

Answer 1

$5 \left( a+7 \right) \left( a-10 \right) +16$

$\left(5a+35\right)\left(a-10\right)+16$

$5a^{2}-50a+35a-350+16$

5a²- 15a -350 + 16

5a² - 15a - 334

Answer 2

Answer:

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Step-by-step explanation:

→ (a+7)(a-10) + 16

→ a × a - a × 10 + 7 × a - 7 × 10 + 16

→ a² - 10a + 7a - 70 + 16

→ a² - 3a - 54