Multiply and simplify, if needed
1. x(2x−7)
2. (x+5)(x+9)
3. (2x−1)(x+3)
4. (x+6)²
5. (5x+4)(5x−4)
6. (3x-8)(x+2)
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Multiply and simplify, if needed
1. x(2x−7)
2. (x+5)(x+9)
3. (2x−1)(x+3)
4. (x+6)²
5. (5x+4)(5x−4)
6. (3x-8)(x+2)
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Answer:
1. 2x²-7x
2. x²+11x+45
3. 2x²+5x+2
4. x²+12x+36
5. 3x²-3x-16
Step-by-step explanation:
FOIL METHOD LAMANG
Answer:
1. x(2x-7)
=x+2x-7
2.(x+5)(x+9)
=(x·x)+(x.9)+(5.x)+(5.9)
=x²+9x+5x+45
=x²+14x+45
3.(2x-1)(x+3)
=(2x.x)+(2x.3)-(1.x)-(1.3)
=2x²+5x-1x-3
=2x²+4x-3
4.(x+6)²
=(x+6)(x+6)
=(x.x)+(x.6)+(6.x)+(.6)
=x²+6x+6x+36
=x²+12x+36
5. (5x+4)(5x−4)
=(5x.5x)+(5x.4)+(4.5x)+(4.-4)
=25x+20x+20x-16
=65x-16
6. (3x-8)(x+2)
=(3x.x)+(3x.2)+(8.x)+(8.2)
=3x²+5x+8x+16
=3x²+13x+16
#bagongaralin
Step-by-step explanation: