( 7x² - 2)2
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Verified answer
Answer:
14ײ-4
Solving steps
7ײ×2-2×2
Answer:
49x² - 28x + 4
Step-by-step explanation:
(7x² - 2)2
(7x² - 2) (7x² - 2)
expand (7x² - 2) (7x² - 2) using the foil method
Apply the distributive property
7 x (7x − 2) −2 (x − 2)
Apply the distributive property.
7 x (7x) + 7x • -2 -2 (7x - 2)
Apply the distributive property.
7x (7x) + 7x • -2 -2 (7x) - 2• -2
= 49x² - 14x - 14x + 4
simplify, subtract 14x from -14x.
= 49x² - 28x + 4