Question

TENTUKAN HASIL DARI : A. (-3x-4) (-3x+4) B. (-2p+1) pangkat 2 C. (5x-3) pangkat 2

Answer 1

(-3x - 4)(-3x + 4)
= (-3x)(-3x) + (-3x)(4) + (-4)(-3x) + (-4)(4)
= 9x² - 12x + 12x - 16
= 9x² - 16

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(-2p + 1)²
= (-2p + 1)(-2p + 1)
= (-2p)(-2p) + (-2p)(1) + (1)(-2p) + (1)(1)
= 4p² - 2p - 2p + 1
= 4p² - 4p + 1

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(5x - 3)²
= (5x - 3)(5x - 3)
= (5x)(5x) + (5x)(-3) + (5x)(-3) + (-3)(-3)
= 25x² - 15x - 15x + 9
= 25x² - 30x + 9