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KATRIN_1 [288]
2 years ago
14

Which expression is the factorization of x2 10x 21? (x 3)(x 7) (x 4)(x 6) (x 6)(x 15) (x 7)(x 14)

Mathematics
1 answer:
Leona [35]2 years ago
6 0

\large\color{pink}{{★ƛƝƧƜЄƦ ↦}}

\purple{ \bf{Let's  \: solve→}}

\sf{↪ {x}^{2}  + 10x + 21} \\  \\  \sf{↪by \: splitting \: middle \: term} \\  \\  \sf{↪ {x}^{2}  + 7x + 3x + 21} \\  \\  \sf{↪taking \: common} \\  \\  \sf{↪x(x + 7)   + 3(x + 7)} \\  \\  \sf{↪(x + 3)(x + 7) \: is \: yr \: answer}

<h2>____________________☃️</h2>

\sf{\:мѕнαcкεя\: ♪...}

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