In Exercises 7 to 12, simplify by using the FOIL method of multiplication. 7. (x + 3)(x + 4) 8. (x 5)(x 7) 9. (2r + 5)(3x - 2) 10. (3x + 7)(2r + 3) 11. (a + b) + (a - b) 12. (x + 2) - (x - 2)

Q: 1. Simplify the following 2x 6x³ ÷ x+1 x²-1 a. b. (x +(2+√3)(x − (2+√3)

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Q: b) 3x(x-リを(x+2置6x-度(税)

A:

Q: 1. Simplify. Express your answer with positive exponents. No decimals!! V4x2y6 (c) (2x-2y3)2(4x³y³)²…

A: Please see the answer below.

Q: x²y)(12x3z2)

A: Multiplying the given expression .

Q: 8(8v-4c-7)

A:

Q: Simplify. (√5+3)(√5-3)

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Q: simplify 3(1 + x)A - x(1 + x)-2/3 83. (1 + x):/ (7 – 3x)2 +x(7 – 3x)-1/2 84. 7- 3x

A: We have to  simplify given expression.

Q: 31. Simplify 22-10x-24 16x+8x? x . 922 12- O -922 -9 8x 8x O -9x 8 9x2 8x

A: Simplify

Q: exact length of each of the following curves.

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Q: K Add the polynomials. (5x4y²-x²y² + 12xy) + (-6x4y²-6x²y-11xy) The sum is (Simplify your answer.)

A:

Q: Multiply (2x-9(4x - 2)

A: (2x-9)(4x-2)=2x(4x-2)-9(4x-2) ⇒  (2x-9)(4x-2)=8x2-4x-36x+18 ⇒(2x-9)(4x-2)=8x2-40x+18

Q: 18. Simplify: 3 4 + 2 X 1 2 3x X

A: To simplify the following expression.

Q: Multiply (9a - 4)² 81a-72a+ 16 9a2- 72a+16

A: Given : (9a - 4)2

Q: Simplify x/x+5 - x+7/ x(x+5)

A: Simplifying: x/x+5 - x+7/ x(x+5)

Q: Jika 9b+ 18a =27, dan (2a+b)c =42, nilai (c-3)^2

A: Given if 9b+ 18a =27 and (2a+b)c =42, then we have to compute (c - 3) 2 .

Q: (+2)(z-3) (2z-1)(+5 (2a-1)(2+2) (r-3)(x-4)

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Q: Multiply the following. (3x - 4)(x³ – x + 2) (3x – 4) (x³ – x + 2) = (Simplify your answer.)

A: First, multiply each of the terms and then add or subtract the terms with the same variables…