Question

Quiz

Hasil Dari ( 7x - 6 ) ( 7x + 10 ) adalah ...*
x => 12

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=> Masukin Nilai X Nya

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Answer 1

SOAL 1

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(7x - 6)(7x + 10)

= 7x(7x + 10) - 6(7x + 10)

= 49x² + 70x - 42x - 60

= 49x² + 28x - 60

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x → 12

= 49(12²) + 28(12) - 60

= 49(144) + 28(12) - 60

= (49 × 144) + (28 × 12) - 60

= 7.056 + 336 - 60

= 7.056 + 276

= 7.332

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Answer 2

Penyelesaian

Nomor 1

(7x - 6)(7x + 10)

= 7x(7x + 10) - 6(7x + 10)

= 49x² + 70x - 42x - 60

= 49x² + 28x - 60

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Nomor 2

X => 12

= 49(12×12) + (28×12) - 60

= (49×144) + (28×12) - 60

= (49 × 144) + (28 × 12) - 60

= 7.056 + 336 - 60

= 7.332